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Eagle and Fleche Constellations - Aquila and Sagitta constellations - The brightest star of this constellation is Altair. It is one of the brightest stars in the night sky. It is the center of an almost perfect alignment of three stars and is located about 16 years - light from the Sun. Above the small constellation of the Fleche. Aquila (the Eagle) well represents a mythological bird that was the companion of Jupiter. It lies in the northern Milky Way and contans rich fields of stars particularly in the western half and into adjoining Scutum. The brightest star in the constellation is Altair (Arabic for flying eagle), which is at one corner of the Summer Triangle (Altair, Deneb and Vega). Sagitta (the Arrow) is the third smallest constellation in the sky, and although it contains no bright stars, was well known to the ancient Greeks. Its arrow seems directed through Vulpecula and Pegasus towards Andromeda, skirting Cygnus. These constellations are a little north of the celestial equat

Eagle and Fleche Constellations - Aquila and Sagitta constellations - The brightest star of this constellation is Altair. It is one of the brightest stars in the night sky. It is the center of an almost perfect alignment of three stars and is located about 16 years - light from the Sun. Above the small constellation of the Fleche. Aquila (the Eagle) well represents a mythological bird that was the companion of Jupiter. It lies in the northern Milky Way and contans rich fields of stars particularly in the western half and into adjoining Scutum. The brightest star in the constellation is Altair (Arabic for flying eagle), which is at one corner of the Summer Triangle (Altair, Deneb and Vega). Sagitta (the Arrow) is the third smallest constellation in the sky, and although it contains no bright stars, was well known to the ancient Greeks. Its arrow seems directed through Vulpecula and Pegasus towards Andromeda, skirting Cygnus. These constellations are a little north of the celestial equat

PIX4588824

C.R. juvenile prisons for young offenders, 1970

C.R. juvenile prisons for young offenders, 1970

MOD6437276

Prince of Oranien William III, 1672 (copper engraving)

Prince of Oranien William III, 1672 (copper engraving)

Danckertsz, Justus (1635-1701)

PAA8914655

Orion Nebula - the trapeze - The Trapezium region in M42 - Located 1500 years - light, Orion Nebula is the closest region of formation of stars of the Sun. In the center of the picture, the Trapeze of Orion. The Trapeze is among the youngest known open clusters, it is made up of 4 massive stars that make the nebula shine. Image obtained with Siding Spring's 3.9m telescope. 30-sec poses. The central 'star' of the three groups forming the asterism of Orion's sword is in reality a nebula, and is clearly nebulous to the unaided eye. At the heart of the most luminous nebulosity shimmer a handful of stars known as the Trapezium cluster, visible in binoculars. These are the brightest members of a substantial cluster of stars, most of which are still hidden in the dusty recesses of the Orion nebula against which they are seen. The stars of the Trapezium provide much of the energy which makes the brilliant Orion Nebula visible and are at a distance of about 1500 light years. This image was made

Orion Nebula - the trapeze - The Trapezium region in M42 - Located 1500 years - light, Orion Nebula is the closest region of formation of stars of the Sun. In the center of the picture, the Trapeze of Orion. The Trapeze is among the youngest known open clusters, it is made up of 4 massive stars that make the nebula shine. Image obtained with Siding Spring's 3.9m telescope. 30-sec poses. The central 'star' of the three groups forming the asterism of Orion's sword is in reality a nebula, and is clearly nebulous to the unaided eye. At the heart of the most luminous nebulosity shimmer a handful of stars known as the Trapezium cluster, visible in binoculars. These are the brightest members of a substantial cluster of stars, most of which are still hidden in the dusty recesses of the Orion nebula against which they are seen. The stars of the Trapezium provide much of the energy which makes the brilliant Orion Nebula visible and are at a distance of about 1500 light years. This image was made

PIX4617827

Orion Nebula (M42 - 43) - The Orion Nebula - Located 1500 years ago - the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star - forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars. The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula. Three, five - minute exposures were used to make this pict

Orion Nebula (M42 - 43) - The Orion Nebula - Located 1500 years ago - the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star - forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars. The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula. Three, five - minute exposures were used to make this pict

PIX4617852

Nebula NGC 3372 in the Carene in false colours - NGC 3372 Carina nebula - The nebula of the Carene is located about 8000 years - light from the Earth. It is home to many hot stars, including the massive star Eta Carinae in the centre of the nebula. Top right is the cluster of stars NGC 3293. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Although no bright naked - eye stars are associated with the Carina nebula now, 150 years ago there blazed forth here one of the most unusual and peculiar stars ever seen. The star is known as Eta Carinae and for a few months in 1843 it was the second or third brightest star in the sky. Since then it has faded and is today about 1000 times fainter than it was at its brightest as the nebula it created during its outburst has cooled and become opaque. The whole region around Eta Carinae is rich in hot stars of which Eta is an extreme example and it is their combined radiation that produces the spectacular Carina nebula that dominates

Nebula NGC 3372 in the Carene in false colours - NGC 3372 Carina nebula - The nebula of the Carene is located about 8000 years - light from the Earth. It is home to many hot stars, including the massive star Eta Carinae in the centre of the nebula. Top right is the cluster of stars NGC 3293. Image obtained from the 1.2m Schmidt UK telescope of Siding Spring. Although no bright naked - eye stars are associated with the Carina nebula now, 150 years ago there blazed forth here one of the most unusual and peculiar stars ever seen. The star is known as Eta Carinae and for a few months in 1843 it was the second or third brightest star in the sky. Since then it has faded and is today about 1000 times fainter than it was at its brightest as the nebula it created during its outburst has cooled and become opaque. The whole region around Eta Carinae is rich in hot stars of which Eta is an extreme example and it is their combined radiation that produces the spectacular Carina nebula that dominates

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Nebula NGC 3372 in the Carene - The Carina nebula, NGC 3372 - The Carene nebula is located about 7000 years from the Earth. It is home to many hot stars, including the star Eta Carinae in the centre of the nebula. Image obtained by Siding Spring's 3.9m telescope. The brightest part of the Milky Way, as seen by the unaided eye, lies in the southern constellation Carina. Here there are an unusually large number of young, hot stars. Their radiation is rich in energetic ultraviolet light. Many of these stars were born within the spectacular Carinae nebula, seen here. The nebula is a cloud of glowing gas composed mostly of hydrogen. It excited by ultrviolet light from the embedded stars. This dostictive emission radiation is responsible for the red colour. About a quarter of the nebula is made of helium gas, the second most abundant element in the universe after hydrogen, and all the other chemical elements account for only a few percent of the total mass. The brightest star in the nebula i

Nebula NGC 3372 in the Carene - The Carina nebula, NGC 3372 - The Carene nebula is located about 7000 years from the Earth. It is home to many hot stars, including the star Eta Carinae in the centre of the nebula. Image obtained by Siding Spring's 3.9m telescope. The brightest part of the Milky Way, as seen by the unaided eye, lies in the southern constellation Carina. Here there are an unusually large number of young, hot stars. Their radiation is rich in energetic ultraviolet light. Many of these stars were born within the spectacular Carinae nebula, seen here. The nebula is a cloud of glowing gas composed mostly of hydrogen. It excited by ultrviolet light from the embedded stars. This dostictive emission radiation is responsible for the red colour. About a quarter of the nebula is made of helium gas, the second most abundant element in the universe after hydrogen, and all the other chemical elements account for only a few percent of the total mass. The brightest star in the nebula i

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Spiral galaxy NGC 1313 in the Reticule - The starburst galaxy NGC 1313 - NGC 1313 is a galaxy located about 15 million years ago - light. Intense star formations are observed. Image made with Siding Spring's 3.9m telescope. In visible light, NGC 1313 seems dominated by scattered patches of star formation which give our picture a rather ragged appearance. The clouds of bluish stars seem to have burst into existence at random, without the normal trigger gravitational interaction or even a distinct spiral to prompt them. Star formation seems to have occurred in a series of irregular, self-sustaining bursts. However, a very deep image shows that the outer parts of galaxy are also very disturbed. Seen with a radio telescope, the galaxy is rich in hydrogen, the raw material of stars, and the gas circulates around the centre of the galaxy in a well ordered way, apparently hardly affected by the starburst activity or other irregularities that so colour our visual impression of this unusual gal

Spiral galaxy NGC 1313 in the Reticule - The starburst galaxy NGC 1313 - NGC 1313 is a galaxy located about 15 million years ago - light. Intense star formations are observed. Image made with Siding Spring's 3.9m telescope. In visible light, NGC 1313 seems dominated by scattered patches of star formation which give our picture a rather ragged appearance. The clouds of bluish stars seem to have burst into existence at random, without the normal trigger gravitational interaction or even a distinct spiral to prompt them. Star formation seems to have occurred in a series of irregular, self-sustaining bursts. However, a very deep image shows that the outer parts of galaxy are also very disturbed. Seen with a radio telescope, the galaxy is rich in hydrogen, the raw material of stars, and the gas circulates around the centre of the galaxy in a well ordered way, apparently hardly affected by the starburst activity or other irregularities that so colour our visual impression of this unusual gal

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Elliptical galaxy NGC 1316 in the Furnace - Giant elliptical galaxy NGC 1316 - By studying the clusters of stars and clouds of dust visible in this photo taken by the Hubble space telescope in March 2003, it is believed that the giant elliptical galaxy NGC 1316 is the result of a collision of two spiral galaxies that occurred some billions of years ago. This galaxy resides about 75 million light years ago in the cluster of galaxies of the Furnace. Also called Fornax A, it is one of the strongest radio sources in the sky. This image made from data obtained with the NASA Hubble Space Telescope reveals the dust lanes and star clusters of this giant galaxy that give evidence that it was formed from a past merger of two gas - rich galaxies. NGC 1316 is on the outskirts of a nearby cluster of galaxies in the southern constellation of Fornax, at a distance of about 75 million light - years. It is one of the brightest ellipticals in the Fornax galaxy cluster. NGC 1316, also known as Fornax A,

Elliptical galaxy NGC 1316 in the Furnace - Giant elliptical galaxy NGC 1316 - By studying the clusters of stars and clouds of dust visible in this photo taken by the Hubble space telescope in March 2003, it is believed that the giant elliptical galaxy NGC 1316 is the result of a collision of two spiral galaxies that occurred some billions of years ago. This galaxy resides about 75 million light years ago in the cluster of galaxies of the Furnace. Also called Fornax A, it is one of the strongest radio sources in the sky. This image made from data obtained with the NASA Hubble Space Telescope reveals the dust lanes and star clusters of this giant galaxy that give evidence that it was formed from a past merger of two gas - rich galaxies. NGC 1316 is on the outskirts of a nearby cluster of galaxies in the southern constellation of Fornax, at a distance of about 75 million light - years. It is one of the brightest ellipticals in the Fornax galaxy cluster. NGC 1316, also known as Fornax A,

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Spiral Galaxy NGC 2397 - Galaxy Spiral NGC 2397 - The galaxy NGC 2397 is a classic spiral galaxy located about 60 million years ago - light from Earth in the southern constellation of Flying Fish. The central part houses old yellow and red stars while new stars form in the outer arms. This image obtained by the space telescope on 14 October 2006 shows the brightest of these young blue stars. The 2006bc supernova, which exploded in March 2006, is also visible near the central region, while its lightning shrinking. Located nearly 60 million light - years away from Earth, the galaxy NGC 2397 is typical of most spirals, with mostly older, yellow and red stars in its central portion, while star formation continues in the outer, bluer spiral arms. The brightest of these young, blue stars can be seen individually in this high resolution view from the Hubble's Advanced Camera for Surveys (ACS). One typical feature of this Hubble image is the view of supernova SN 2006bc taken when its brightnes

Spiral Galaxy NGC 2397 - Galaxy Spiral NGC 2397 - The galaxy NGC 2397 is a classic spiral galaxy located about 60 million years ago - light from Earth in the southern constellation of Flying Fish. The central part houses old yellow and red stars while new stars form in the outer arms. This image obtained by the space telescope on 14 October 2006 shows the brightest of these young blue stars. The 2006bc supernova, which exploded in March 2006, is also visible near the central region, while its lightning shrinking. Located nearly 60 million light - years away from Earth, the galaxy NGC 2397 is typical of most spirals, with mostly older, yellow and red stars in its central portion, while star formation continues in the outer, bluer spiral arms. The brightest of these young, blue stars can be seen individually in this high resolution view from the Hubble's Advanced Camera for Surveys (ACS). One typical feature of this Hubble image is the view of supernova SN 2006bc taken when its brightnes

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Planetary nebula NGC 5189 in the Fly - NGC 5189 - Planetary nebula in Musca - This nebula is located about 3000 light years from Earth in the southern constellation of Fly. Image obtained by the Hubble Space Telescope (HST). The colors used in this image correspond to the emissions of different gases: sulfur in green, hydrogen in orange and oxygen in blue. Hubble Space Telescope have photographed a festive - looking nearby planetary nebula called NGC 5189. Planetary nebulae represent the final brief stage in the life of a medium - sized star like our Sun. While consuming the last of the fuel in its core, the dying star expels a large portion of its outer envelope. This material then becomes heated by the radiation from the stellar remnant and radiates, producing glowing clouds of gas that can show complex structures, as the ejection of mass from the star is uneven in both time and direction. This image was taken with Hubble's Wide Field Camera 3 on October 8, 2012, in filters tuned to

Planetary nebula NGC 5189 in the Fly - NGC 5189 - Planetary nebula in Musca - This nebula is located about 3000 light years from Earth in the southern constellation of Fly. Image obtained by the Hubble Space Telescope (HST). The colors used in this image correspond to the emissions of different gases: sulfur in green, hydrogen in orange and oxygen in blue. Hubble Space Telescope have photographed a festive - looking nearby planetary nebula called NGC 5189. Planetary nebulae represent the final brief stage in the life of a medium - sized star like our Sun. While consuming the last of the fuel in its core, the dying star expels a large portion of its outer envelope. This material then becomes heated by the radiation from the stellar remnant and radiates, producing glowing clouds of gas that can show complex structures, as the ejection of mass from the star is uneven in both time and direction. This image was taken with Hubble's Wide Field Camera 3 on October 8, 2012, in filters tuned to

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Planetary nebula NGC 6826 in Swan - Planetary nebula NGC 6826 in Cygnus - Planetary nebula NGC 6826 is located about 2000 years - light from Earth in the constellation Swan. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope on January 27, 1996. NGC 6826's eye - like appearance is marred by two sets of blood - red “” fliers”” that lie horizontally across the image. The surrounding faint green “” white”” of the eye is believed to be gas that made up almost half of the star's mass for most of its life. The hot remnant star (in the center of the green oval) drives a fast wind into older material, forming a hot interior bubble which pushes the older gas ahead of it to form a bright rim. (The star is one of the brightest stars in any planetary.) NGC 6826 is 2,200 light - years away in the constellation Cygnus. The Hubble telescope observation was

Planetary nebula NGC 6826 in Swan - Planetary nebula NGC 6826 in Cygnus - Planetary nebula NGC 6826 is located about 2000 years - light from Earth in the constellation Swan. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope on January 27, 1996. NGC 6826's eye - like appearance is marred by two sets of blood - red “” fliers”” that lie horizontally across the image. The surrounding faint green “” white”” of the eye is believed to be gas that made up almost half of the star's mass for most of its life. The hot remnant star (in the center of the green oval) drives a fast wind into older material, forming a hot interior bubble which pushes the older gas ahead of it to form a bright rim. (The star is one of the brightest stars in any planetary.) NGC 6826 is 2,200 light - years away in the constellation Cygnus. The Hubble telescope observation was

PIX4623390

Interacting spiral galaxies Arp 87 - Interacting galaxies Arp 87 - This pair of interaction galaxies called Arp 87 is composed of the galaxy NGC 3808, on the right, and its companion NGC 3808A. Both are spiral galaxies. An arm of NGC 3808, consisting of dust, gas and stars, envelops his companion. The interaction of these galaxies causes intense star formation. Arp 87 is located 300 million light years from Earth in the constellation Lion. This image was taken by the Hubble Space Telescope in February 2007. Arp 87 is a stunning pair of interacting galaxies. Stars, gas, and dust flow from the large spiral galaxy, NGC 3808, forming an enveloping arm around its companion. The shapes of both galaxies have been distorted by their gravitational interaction. Arp 87 is located in the constellation of Leo, the Lion, approximately 300 million light - years away from Earth. Arp 87 appears in ARP's Atlas of Peculiar Galaxies. As also seen in similar interacting galaxies, the corkscrew shape of the

Interacting spiral galaxies Arp 87 - Interacting galaxies Arp 87 - This pair of interaction galaxies called Arp 87 is composed of the galaxy NGC 3808, on the right, and its companion NGC 3808A. Both are spiral galaxies. An arm of NGC 3808, consisting of dust, gas and stars, envelops his companion. The interaction of these galaxies causes intense star formation. Arp 87 is located 300 million light years from Earth in the constellation Lion. This image was taken by the Hubble Space Telescope in February 2007. Arp 87 is a stunning pair of interacting galaxies. Stars, gas, and dust flow from the large spiral galaxy, NGC 3808, forming an enveloping arm around its companion. The shapes of both galaxies have been distorted by their gravitational interaction. Arp 87 is located in the constellation of Leo, the Lion, approximately 300 million light - years away from Earth. Arp 87 appears in ARP's Atlas of Peculiar Galaxies. As also seen in similar interacting galaxies, the corkscrew shape of the

PIX4610957

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescope towards the constellation of Pisces, the Fish, having the appear

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescope towards the constellation of Pisces, the Fish, having the appear

Adam Block

PIX4609250

Spiral galaxies NGC 3314 A and B in Hydra - Galaxy pair NGC 3314 in Hydra - NGC 3314 is a pair of spiral galaxies distant about 140 million years - Earth light. These galaxies are not interacting but just perfectly aligned in front of each other from Earth. Nasa's Hubble Space Telescope shows a rare view of a pair of overlapping galaxies, called NGC 3314. The two galaxies look as if they are colliding, but they are actually separated by tens of millions of light - years, or about ten times the distance between our Milky Way and the neighboring Andromeda galaxy. The chance alignment of the two galaxies, as seen from Earth, gives a unique look at the silhouetted spiral arms in the closer face - on spiral, NGC 3314A. The motion of the two galaxies indicates that they are both relatively undisturbed and that they are moving in markedly different directions. The color composite was produced from exposures taken in blue and red light with Hubble's Advanced Camera for Surveys. The pair of gal

Spiral galaxies NGC 3314 A and B in Hydra - Galaxy pair NGC 3314 in Hydra - NGC 3314 is a pair of spiral galaxies distant about 140 million years - Earth light. These galaxies are not interacting but just perfectly aligned in front of each other from Earth. Nasa's Hubble Space Telescope shows a rare view of a pair of overlapping galaxies, called NGC 3314. The two galaxies look as if they are colliding, but they are actually separated by tens of millions of light - years, or about ten times the distance between our Milky Way and the neighboring Andromeda galaxy. The chance alignment of the two galaxies, as seen from Earth, gives a unique look at the silhouetted spiral arms in the closer face - on spiral, NGC 3314A. The motion of the two galaxies indicates that they are both relatively undisturbed and that they are moving in markedly different directions. The color composite was produced from exposures taken in blue and red light with Hubble's Advanced Camera for Surveys. The pair of gal

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Winter scene with a sledge in the foreground and figures gathering round a tent on the ice, 1653 (oil on panel)

Winter scene with a sledge in the foreground and figures gathering round a tent on the ice, 1653 (oil on panel)

Goyen, Jan Josephsz van (1596-1656)

MAN3900340

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away.The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the sta

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away.The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the sta

Jerry Lodriguss

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Rainbow - Rainbow - Rainbow - Arc - en - ciel observed in Brittany on 2 May 2005. 23 minutes before the sun sets, a contrasting rainbow appears in the east. It is very high (the lower the Sun, the higher the bow). Note at the level of the “feet” of the rainbow the difference in luminosite between the interior of the rainbow (under the main arch) and the band between the main arch and the secondary arch (lower and higher). This dark band is called Alexander's Band. It should also be noted that blue is almost absent from the rainbow, because the Sun is setting, therefore orange, betrays a blue light faults that can be seen at the level of the rainbow. May 2, 2005. 23 minutes before the sunset, a contrasted rainbow appear toward the East. It's a tall rainbow, because the Sun is low. Notice the difference of luminosity at the “” feet”” of the rainbow between the inside of the rainbow (under the main arc) and the band located between the main and secondary arcs (fainter and higher). This da

Rainbow - Rainbow - Rainbow - Arc - en - ciel observed in Brittany on 2 May 2005. 23 minutes before the sun sets, a contrasting rainbow appears in the east. It is very high (the lower the Sun, the higher the bow). Note at the level of the “feet” of the rainbow the difference in luminosite between the interior of the rainbow (under the main arch) and the band between the main arch and the secondary arch (lower and higher). This dark band is called Alexander's Band. It should also be noted that blue is almost absent from the rainbow, because the Sun is setting, therefore orange, betrays a blue light faults that can be seen at the level of the rainbow. May 2, 2005. 23 minutes before the sunset, a contrasted rainbow appear toward the East. It's a tall rainbow, because the Sun is low. Notice the difference of luminosity at the “” feet”” of the rainbow between the inside of the rainbow (under the main arc) and the band located between the main and secondary arcs (fainter and higher). This da

Laurent Laveder

PIX4671117

Horse's Head Nebula and IC 434 in Orion - The Horsehead nebula in Orion - The Horse's Head Nebula, Barnard 33, is a dark nebula located in front of the IC 434 emitting nebula about 1500 years - Earth light in the constellation Orion. Lower left is the reflexion nebula, NGC 2023. The Horsehead nebula is located in the constellation of Orion, slightly below the left - most star of the three that form the Hunter's belt. It is part of a vast molecular cloud of dust and gas that includes the Great Orion Nebula and extends throughout the entire constellation as well. Here, we see the Horsehead as it appeared 1,500 years ago, due to distance and the time it takes light to travel. The bright complex of dust and gas below the Horsehead reflects the light given off by the bright star near it's center and is one of the brightest examples of reflection nebulae in the northern sky. The central star is surrounded with a thin shell of hydrogen that glows red by emitting it's own light in a rare examp

Horse's Head Nebula and IC 434 in Orion - The Horsehead nebula in Orion - The Horse's Head Nebula, Barnard 33, is a dark nebula located in front of the IC 434 emitting nebula about 1500 years - Earth light in the constellation Orion. Lower left is the reflexion nebula, NGC 2023. The Horsehead nebula is located in the constellation of Orion, slightly below the left - most star of the three that form the Hunter's belt. It is part of a vast molecular cloud of dust and gas that includes the Great Orion Nebula and extends throughout the entire constellation as well. Here, we see the Horsehead as it appeared 1,500 years ago, due to distance and the time it takes light to travel. The bright complex of dust and gas below the Horsehead reflects the light given off by the bright star near it's center and is one of the brightest examples of reflection nebulae in the northern sky. The central star is surrounded with a thin shell of hydrogen that glows red by emitting it's own light in a rare examp

R. Jay GaBany

PIX4622130

Tarantula (NGC 2070) in the LMC - The nebula around 30 Doradus (NGC 2070) in the LMC - The Tarantula Nebula (or 30 Bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Image obtained with Siding Spring's 3.9m telescope. The brightest cluster of stars in this picture was believed until recently to contain a single, uniquely massive object with the mass equivalent to 1000 suns, and was named as a star, 30 Doradus. Sophisticated image analysis techniques have been used to show that 30 Doradus is a very compact group of stars, many of which are massive, but not unimaginably so. The radiation from this star cluster is sufficient to excite a huge cloud of hydrogen gas in its vicinity so that it glows with its distinctive red colour. This picture is essentially a one minute exposure. A longer

Tarantula (NGC 2070) in the LMC - The nebula around 30 Doradus (NGC 2070) in the LMC - The Tarantula Nebula (or 30 Bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Image obtained with Siding Spring's 3.9m telescope. The brightest cluster of stars in this picture was believed until recently to contain a single, uniquely massive object with the mass equivalent to 1000 suns, and was named as a star, 30 Doradus. Sophisticated image analysis techniques have been used to show that 30 Doradus is a very compact group of stars, many of which are massive, but not unimaginably so. The radiation from this star cluster is sufficient to excite a huge cloud of hydrogen gas in its vicinity so that it glows with its distinctive red colour. This picture is essentially a one minute exposure. A longer

PIX4618266

Nebulae of the horse's head and M42 in Orion - Horsehead and Orion nebulae - Dark Nebula of the horse's head (IC434 - B33). Further down, the large Orion nebula (M42) vast star-forming region. These nebulae are located 1500 years of light from Earth. Image obtained from the 1.2m Schmidt telescope of Siding Spring. This wide - angle picture of the Orion region has been made to reveal the extensive network of very faint filaments which are traceable over most of the constellation. These faint features are optical evidence of a substantial dark cloud of molecular gas and dust which dominate at radio wavelengths. Where hot stars are closely associated with the molecular cloud, a bright nebula appears. By far the most conspicuous of these is the Orion Nebula, M42. This spectacular object is so bright that its light is reflected from filaments of the dark cloud some distance away. In contrast, the wisps of the Horsehead Nebula are much fainter but even here faint tendrils of nebulosity show

Nebulae of the horse's head and M42 in Orion - Horsehead and Orion nebulae - Dark Nebula of the horse's head (IC434 - B33). Further down, the large Orion nebula (M42) vast star-forming region. These nebulae are located 1500 years of light from Earth. Image obtained from the 1.2m Schmidt telescope of Siding Spring. This wide - angle picture of the Orion region has been made to reveal the extensive network of very faint filaments which are traceable over most of the constellation. These faint features are optical evidence of a substantial dark cloud of molecular gas and dust which dominate at radio wavelengths. Where hot stars are closely associated with the molecular cloud, a bright nebula appears. By far the most conspicuous of these is the Orion Nebula, M42. This spectacular object is so bright that its light is reflected from filaments of the dark cloud some distance away. In contrast, the wisps of the Horsehead Nebula are much fainter but even here faint tendrils of nebulosity show

PIX4617912

Cone Nebula NGC 2264 in the Unicorn - The Cone Nebula NGC 2264 in Monoceros - The Cone Nebula is a region H II located about 2600 years from Earth. It is accompanied by a cluster of stars called the Christmas tree. The bright star at the top is S Monocerotis, a star of magnitude 4.7. Image obtained with a 50 cm telescope, composite of several images. Total installation of 52 hours. The Cone Nebula (also known as NGC 2264) is an H II region in the constellation of Monoceros. It was discovered by William Herschel in 1785. The nebula is located about 800 parsecs or 2,600 light - years away from Earth. The Cone Nebula is part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone. The brightest star on top of the image is S Monocerotis. This image was created by stitching six separate photographs, featuring over 52 total hours of exposure, into a single seamless mosaic. The exposures

Cone Nebula NGC 2264 in the Unicorn - The Cone Nebula NGC 2264 in Monoceros - The Cone Nebula is a region H II located about 2600 years from Earth. It is accompanied by a cluster of stars called the Christmas tree. The bright star at the top is S Monocerotis, a star of magnitude 4.7. Image obtained with a 50 cm telescope, composite of several images. Total installation of 52 hours. The Cone Nebula (also known as NGC 2264) is an H II region in the constellation of Monoceros. It was discovered by William Herschel in 1785. The nebula is located about 800 parsecs or 2,600 light - years away from Earth. The Cone Nebula is part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone. The brightest star on top of the image is S Monocerotis. This image was created by stitching six separate photographs, featuring over 52 total hours of exposure, into a single seamless mosaic. The exposures

R. Jay GaBany

PIX4618663

Nebulae NGC 3603 and NGC 3576 in Carene - NGC 3576 and 3603 in Carina - NGC 3576 (right) is located about 7000 years - light from Earth; NGC 3603 (left) is twice as far away. These two nebulae are located in the constellation Carene. Image obtained by Siding Spring's 3.9m telescope. These two star - formation regions appear side by side in the sky and seem to be linked as parts of an extensive nebula. However, the apparent intimacy is line - of - sight effect because these two objects are at quite different distances from the Sun. The curious looped nebula NGC 3576 is about 7000 light years from us while its neighbour NGC 3603 is more than twice as far away. That NGC 3603 is the more distant is confirmed by its colour, which is a ruddier red than the pinkish hue of NGC 3576. The change in colour is due to absorption of the blue - light component of the nebulosity by dust particles in the much longer line of sight. This effect is known as interstellar reddening, though it would be bette

Nebulae NGC 3603 and NGC 3576 in Carene - NGC 3576 and 3603 in Carina - NGC 3576 (right) is located about 7000 years - light from Earth; NGC 3603 (left) is twice as far away. These two nebulae are located in the constellation Carene. Image obtained by Siding Spring's 3.9m telescope. These two star - formation regions appear side by side in the sky and seem to be linked as parts of an extensive nebula. However, the apparent intimacy is line - of - sight effect because these two objects are at quite different distances from the Sun. The curious looped nebula NGC 3576 is about 7000 light years from us while its neighbour NGC 3603 is more than twice as far away. That NGC 3603 is the more distant is confirmed by its colour, which is a ruddier red than the pinkish hue of NGC 3576. The change in colour is due to absorption of the blue - light component of the nebulosity by dust particles in the much longer line of sight. This effect is known as interstellar reddening, though it would be bette

PIX4619197

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Mosaic of images obtained with a telescope of 35 cm, 22 hours of poses. This rich nebula complex is located near the center of the galaxy where dust is ubiquitous and often partially obscures the view at visible wavelengths. The two bright blue clouds are NGC 6589 and NGC 6590. The clouds represent scattered starlight from two imbedded young blue stars. The two bright stars are part of a loose cluster known as NGC 6595. The diffuse magenta cloud is a complex HII region which absorbs the energy from the nearby bright stars and releases it in the visible red light of excited hydrogen. The HII clouds are known as IC 1283, IC 1284 and IC 4700. This region of our galaxy is rich with dust clouds and young stars which together produce the stunning reflection nebulae we see in the image. Mosaic of images

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Mosaic of images obtained with a telescope of 35 cm, 22 hours of poses. This rich nebula complex is located near the center of the galaxy where dust is ubiquitous and often partially obscures the view at visible wavelengths. The two bright blue clouds are NGC 6589 and NGC 6590. The clouds represent scattered starlight from two imbedded young blue stars. The two bright stars are part of a loose cluster known as NGC 6595. The diffuse magenta cloud is a complex HII region which absorbs the energy from the nearby bright stars and releases it in the visible red light of excited hydrogen. The HII clouds are known as IC 1283, IC 1284 and IC 4700. This region of our galaxy is rich with dust clouds and young stars which together produce the stunning reflection nebulae we see in the image. Mosaic of images

R. Gendler

PIX4619883

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

PIX4619447

Nebula N90 in the Little Magellan Cloud - N90 nebula in the Small Magellanic Cloud - View of nebula N90 in the Little Magellan Cloud, a galaxy next to our located 200 000 years - light from Earth. At the heart of this star-forming region is the cluster of stars NGC 602. These young stars have emerge from their cocoon of gas blowing the surrounding matter; the gas pillars pointing towards these stars are a sign of this erosion. In the dark clouds, other stars are forming. In the background, many galaxies are visible. Composite images obtained by the Hubble Space Telescope in July 2004. N90 is one of the star - forming regions in the Small Magellanic Cloud approximately 200,000 light - years away from the Earth.. The rich populations of infant stars found here enable astronomers to examine star forming processes in an environment that is very different from that in our own Milky Way. The high energy radiation blazing out from the hot young stars in N90 is eroding the outer portions of th

Nebula N90 in the Little Magellan Cloud - N90 nebula in the Small Magellanic Cloud - View of nebula N90 in the Little Magellan Cloud, a galaxy next to our located 200 000 years - light from Earth. At the heart of this star-forming region is the cluster of stars NGC 602. These young stars have emerge from their cocoon of gas blowing the surrounding matter; the gas pillars pointing towards these stars are a sign of this erosion. In the dark clouds, other stars are forming. In the background, many galaxies are visible. Composite images obtained by the Hubble Space Telescope in July 2004. N90 is one of the star - forming regions in the Small Magellanic Cloud approximately 200,000 light - years away from the Earth.. The rich populations of infant stars found here enable astronomers to examine star forming processes in an environment that is very different from that in our own Milky Way. The high energy radiation blazing out from the hot young stars in N90 is eroding the outer portions of th

R. Gendler

PIX4620932

Orion Nebula (M42 - 43) - The Orion Nebula - Located 1500 years ago - the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star - forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars. The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula. Three, five - minute exposures were used to make this pict

Orion Nebula (M42 - 43) - The Orion Nebula - Located 1500 years ago - the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained with Siding Spring's 3.9m telescope. The Orion Nebula is famous for a number of reasons. It is the nearest bright nebula to us and can be seen with the naked eye. Its brightness led to it being the first nebula ever photographed (in 1882) and its proximity (1500 light years) means that we know more about it than any other star - forming region. It is also in a very active stage of star formation and it is perfectly placed for us to explore the intimate details of the birth of stars. The inner regions are glowing mainly in the red light of excited hydrogen, which together with some green emission from oxygen give the centre of the nebula a yellowish colour. The energy for this spectacular display comes from the small cluster of stars in the brightest part of the nebula. Three, five - minute exposures were used to make this pict

PIX4617657

Nebula NGC 1333 in Persee infrared view - NGC 1333 star - forming region seen in infrared. - NGC 1333 is a nebula located between 700 and 1000 years - light of the Earth. It's a reflexion nebula and a star-forming region. Viewed here in infrared by the Spitzer space telescope, young stars become visible. Jets of matter, in yellow - green, emerge from extremely young embryonic stars. Located between 700 and 1000 light - years from Earth in the constellation Perseus, the reflection nebula called NGC 1333 is seen here in infrared pictured by the Spitzer Space Telescope. The young stars in NGC 1333 do not form a single cluster, but are split between two sub-groups. One group is to the north near the nebula, dominated by the infrared light from warm dust shown as red in the image. The other group is south, where the features shown in yellow and green abound in the densest part of the natal gas cloud. The knotty yellow - green features are glowing shock fronts where jets of material, spewed

Nebula NGC 1333 in Persee infrared view - NGC 1333 star - forming region seen in infrared. - NGC 1333 is a nebula located between 700 and 1000 years - light of the Earth. It's a reflexion nebula and a star-forming region. Viewed here in infrared by the Spitzer space telescope, young stars become visible. Jets of matter, in yellow - green, emerge from extremely young embryonic stars. Located between 700 and 1000 light - years from Earth in the constellation Perseus, the reflection nebula called NGC 1333 is seen here in infrared pictured by the Spitzer Space Telescope. The young stars in NGC 1333 do not form a single cluster, but are split between two sub-groups. One group is to the north near the nebula, dominated by the infrared light from warm dust shown as red in the image. The other group is south, where the features shown in yellow and green abound in the densest part of the natal gas cloud. The knotty yellow - green features are glowing shock fronts where jets of material, spewed

PIX4617526

Globular cluster 47 Toucan - The globular cluster 47 Tucanae, NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clus

Globular cluster 47 Toucan - The globular cluster 47 Tucanae, NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clus

PIX4564283

Desolation - Trenches North of Lens, 1919 (oil on canvas)

Desolation - Trenches North of Lens, 1919 (oil on canvas)

Weyden, Harry van der (1868-1952)

MAA2956764

Globular cluster 47 Toucan - The globular cluster 47 Tucanae NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clust

Globular cluster 47 Toucan - The globular cluster 47 Tucanae NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clust

PIX4564306

Central part of the Virgin galaxy cluster - Heart of the Virgo cluster of galaxies - On the right are the M84 (NGC 4374) and M86 (NGC 4406) (to its left). Lower left is the elliptical galaxy M87. The Virgin's cluster is located about 70 million light years away from Earth and contains nearly 2000 galaxies. This photo shows the heart of the Virgo cluster of galaxies. Located about 70 million light years away, the Virgo cluster is a gigantic collection of several thousand galaxies that dominate our local part of the universe. It is the center of our local supercluster of galaxies which includes members of our local group, the Milky Way (our own galaxy), M31, M32, M110, M33, the Magellanic clouds, and others. Markarian's Chain of galaxies is to the upper right, including giant elliptical galaxies M86 and M84. M87 is another giant elliptical galaxy at lower left in the photo. Also called Virgo A, this galaxy contains nearly 3 trillion solar masses. It lies at a distance of 60 million light

Central part of the Virgin galaxy cluster - Heart of the Virgo cluster of galaxies - On the right are the M84 (NGC 4374) and M86 (NGC 4406) (to its left). Lower left is the elliptical galaxy M87. The Virgin's cluster is located about 70 million light years away from Earth and contains nearly 2000 galaxies. This photo shows the heart of the Virgo cluster of galaxies. Located about 70 million light years away, the Virgo cluster is a gigantic collection of several thousand galaxies that dominate our local part of the universe. It is the center of our local supercluster of galaxies which includes members of our local group, the Milky Way (our own galaxy), M31, M32, M110, M33, the Magellanic clouds, and others. Markarian's Chain of galaxies is to the upper right, including giant elliptical galaxies M86 and M84. M87 is another giant elliptical galaxy at lower left in the photo. Also called Virgo A, this galaxy contains nearly 3 trillion solar masses. It lies at a distance of 60 million light

Jerry Lodriguss

PIX4565411

Star cluster M46 and planetary nebula NGC 2438 - Open cluster M46 and planetary nebula NGC 2438 - M46 (NGC 2437) is an age cluster located at 5400 years - light. It contains about 500 stars, 150 of which are brilliant. It is about 300 million years old. The planetary nebula NGC 2438 does not appear to belong to this cluster, and must be closer although its distance is unknown. Image obtained by Siding Spring's 3.9m telescope The open cluster NGC 2437 (M46) has an angular diameter of almost half a degree and is quite beautiful in even quite a modest telescope. It has an integrated magnitude of about 6 and so is on the threshold of naked - eye visibility. The cluster is quite old as these things go, about 300 million light years. It is about 5000 light years distant, in the northern part of the constellation of Puppis. Although planetary nebula distances are notoriously difficult to measure, NGC 2438 seems to be in the foreground and is not connected to the cluster. Planetaries are in an

Star cluster M46 and planetary nebula NGC 2438 - Open cluster M46 and planetary nebula NGC 2438 - M46 (NGC 2437) is an age cluster located at 5400 years - light. It contains about 500 stars, 150 of which are brilliant. It is about 300 million years old. The planetary nebula NGC 2438 does not appear to belong to this cluster, and must be closer although its distance is unknown. Image obtained by Siding Spring's 3.9m telescope The open cluster NGC 2437 (M46) has an angular diameter of almost half a degree and is quite beautiful in even quite a modest telescope. It has an integrated magnitude of about 6 and so is on the threshold of naked - eye visibility. The cluster is quite old as these things go, about 300 million light years. It is about 5000 light years distant, in the northern part of the constellation of Puppis. Although planetary nebula distances are notoriously difficult to measure, NGC 2438 seems to be in the foreground and is not connected to the cluster. Planetaries are in an

PIX4568052

At the gates of Rome, 1971 (16mm positive, scan 2K/Sound)

At the gates of Rome, 1971 (16mm positive, scan 2K/Sound)

MOD7063109

Nebula of the cone NGC 2264 in the Unicorn - Nebulae in Monoceros - The nebula of the Cone below, is a region about 2600 years - light from the Earth. The bright star in the high center is S Monocerotis, a star of magnitude 4.7. Nests in these gas clouds, the Christmas tree, a cluster of young stars whose shape evokes a Christmas tree. This wide - field image of the Christmas Tree Cluster was taken at the National Science Foundation's 0.9 - meter telescope on Kitt Peak with the NOAO Mosaic CCD camera. Also known as NGC2264, it is an open cluster of stars embedded in a diffuse nebula. It is located in the constellation of Monoceros, the Unicorn. The image also contains two famous nebula. At the bottom center of the image is the Cone Nebula, and to the upper left is the Fox Fur Nebula. The bright star just above the center of the image is known as S Mon. The gentle arcs in orange and blue near the center of the image are Herbig Haro objects, jets of gas from protostars embedded in the ne

Nebula of the cone NGC 2264 in the Unicorn - Nebulae in Monoceros - The nebula of the Cone below, is a region about 2600 years - light from the Earth. The bright star in the high center is S Monocerotis, a star of magnitude 4.7. Nests in these gas clouds, the Christmas tree, a cluster of young stars whose shape evokes a Christmas tree. This wide - field image of the Christmas Tree Cluster was taken at the National Science Foundation's 0.9 - meter telescope on Kitt Peak with the NOAO Mosaic CCD camera. Also known as NGC2264, it is an open cluster of stars embedded in a diffuse nebula. It is located in the constellation of Monoceros, the Unicorn. The image also contains two famous nebula. At the bottom center of the image is the Cone Nebula, and to the upper left is the Fox Fur Nebula. The bright star just above the center of the image is known as S Mon. The gentle arcs in orange and blue near the center of the image are Herbig Haro objects, jets of gas from protostars embedded in the ne

PIX4618652

Nebula NGC 3372 in the Carene in fake colors - NGC 3372 Carina nebula in narrow band - The nebula of the Carene is located about 8000 years - light from Earth. It is home to many hot stars, including the massive star Eta Carinae in the centre of the nebula. Image obtained by the 1.2m Schmidt UK Telescope of Siding Spring through 3 different filters that highlight oxygen, hydrogen, and sulfur. Although no bright naked - eye stars are associated with the Carina nebula now, 150 years ago there blazed forth here one of the most unusual and peculiar stars ever seen. The star is known as Eta Carinae and for a few months in 1843 it was the second or third brightest star in the sky. Since then it has faded and is today about 1000 times fainter than it was at its brightest as the nebula it created during its outburst has cooled and become opaque. The whole region around Eta Carinae is rich in hot stars of which Eta is an extreme example and it is their combined radiation that produces the spect

Nebula NGC 3372 in the Carene in fake colors - NGC 3372 Carina nebula in narrow band - The nebula of the Carene is located about 8000 years - light from Earth. It is home to many hot stars, including the massive star Eta Carinae in the centre of the nebula. Image obtained by the 1.2m Schmidt UK Telescope of Siding Spring through 3 different filters that highlight oxygen, hydrogen, and sulfur. Although no bright naked - eye stars are associated with the Carina nebula now, 150 years ago there blazed forth here one of the most unusual and peculiar stars ever seen. The star is known as Eta Carinae and for a few months in 1843 it was the second or third brightest star in the sky. Since then it has faded and is today about 1000 times fainter than it was at its brightest as the nebula it created during its outburst has cooled and become opaque. The whole region around Eta Carinae is rich in hot stars of which Eta is an extreme example and it is their combined radiation that produces the spect

PIX4619010

Stars in the spiral galaxy NGC 253 - Stars in galaxy NGC 253 - NGC 253 is the brightest galaxy of the Sculptor's group, group of galaxies closest to the Local Group. It is about 13 million light years away. Here, the Hubble space telescope photographed the different star populations of this galaxy. A close - up view from Hubble space telescope shows that NGC 253 is ablaze with the light from thousands of young, blue stars. The spiral galaxy is undergoing intense star training. This image, taken with Hubble's Advanced Camera for Surveys, reveals colors and differing intensities of individual stars as well dark filaments of dust and gas interstellar dust intersperced among the stars. NGC 253 is the dominant galaxy in the Sculptor Group of galaxies and resides about 13 million light - years from Earth. This galaxy is part of a detailed survey called the ACS Nearby Galaxy Survey Treasury program (ANGST). The natural - color images were constructed using Hubble observations taken in infrare

Stars in the spiral galaxy NGC 253 - Stars in galaxy NGC 253 - NGC 253 is the brightest galaxy of the Sculptor's group, group of galaxies closest to the Local Group. It is about 13 million light years away. Here, the Hubble space telescope photographed the different star populations of this galaxy. A close - up view from Hubble space telescope shows that NGC 253 is ablaze with the light from thousands of young, blue stars. The spiral galaxy is undergoing intense star training. This image, taken with Hubble's Advanced Camera for Surveys, reveals colors and differing intensities of individual stars as well dark filaments of dust and gas interstellar dust intersperced among the stars. NGC 253 is the dominant galaxy in the Sculptor Group of galaxies and resides about 13 million light - years from Earth. This galaxy is part of a detailed survey called the ACS Nearby Galaxy Survey Treasury program (ANGST). The natural - color images were constructed using Hubble observations taken in infrare

PIX4609074

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo was obtained by the MPG/ESO telesope of 2.2 - m in La Silla in Chile, total pose of 50 hours. Located some 7 million light - years away, the spiral galaxy NGC 300 is a beautiful representative of its class, a Milky - Way - like member of the prominent Sculptor group of galaxies in the southern constellation of that name. This picture of NGC 300 was taken using the Wide Field Imager (WFI) at Eso's La Silla Observatory in Chile. It was assembled from many individual images through a large set of different filters over many observing nights, spanning several years. The images were mostly taken through filters that transmit red, green or blue light. These were supplemented by images through spec

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo was obtained by the MPG/ESO telesope of 2.2 - m in La Silla in Chile, total pose of 50 hours. Located some 7 million light - years away, the spiral galaxy NGC 300 is a beautiful representative of its class, a Milky - Way - like member of the prominent Sculptor group of galaxies in the southern constellation of that name. This picture of NGC 300 was taken using the Wide Field Imager (WFI) at Eso's La Silla Observatory in Chile. It was assembled from many individual images through a large set of different filters over many observing nights, spanning several years. The images were mostly taken through filters that transmit red, green or blue light. These were supplemented by images through spec

PIX4609239

Spiral galaxy NGC 1313 in the Reticule - The starburst galaxy NGC 1313 - NGC 1313 is a galaxy located about 15 million years ago - light. Intense star formations are observed. In visible light, NGC 1313 seems dominated by scattered patches of star formation which give our picture a rather ragged appearance. The clouds of bluish stars seem to have burst into existence at random, without the normal trigger gravitational interaction or even a distinct spiral to prompt them. Star formation seems to have occurred in a series of irregular, self-sustaining bursts. However, a very deep image shows that the outer parts of galaxy are also very disturbed. Seen with a radio telescope, the galaxy is rich in hydrogen, the raw material of stars, and the gas circulates around the centre of the galaxy in a well ordered way, apparently hardly affected by the starburst activity or other irregularities that so colour our visual impression of this unusual galaxy. NGC 1313 is at a distance of about 15 milli

Spiral galaxy NGC 1313 in the Reticule - The starburst galaxy NGC 1313 - NGC 1313 is a galaxy located about 15 million years ago - light. Intense star formations are observed. In visible light, NGC 1313 seems dominated by scattered patches of star formation which give our picture a rather ragged appearance. The clouds of bluish stars seem to have burst into existence at random, without the normal trigger gravitational interaction or even a distinct spiral to prompt them. Star formation seems to have occurred in a series of irregular, self-sustaining bursts. However, a very deep image shows that the outer parts of galaxy are also very disturbed. Seen with a radio telescope, the galaxy is rich in hydrogen, the raw material of stars, and the gas circulates around the centre of the galaxy in a well ordered way, apparently hardly affected by the starburst activity or other irregularities that so colour our visual impression of this unusual galaxy. NGC 1313 is at a distance of about 15 milli

R. Gendler

PIX4609785

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by Hubble Space Telescope (HST) and Subaru Telescope. The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass””” shape. This composite image combines optical and near - infrared astronomical data from the Hubble Space Telescope with mid - infrared data from the ground - based Subaru Telescope, located on Mauna Kea in Hawaii. The Hubble data (H - alpha, J, and H) were taken as part of H

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by Hubble Space Telescope (HST) and Subaru Telescope. The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass””” shape. This composite image combines optical and near - infrared astronomical data from the Hubble Space Telescope with mid - infrared data from the ground - based Subaru Telescope, located on Mauna Kea in Hawaii. The Hubble data (H - alpha, J, and H) were taken as part of H

PIX4620999

Planetary nebula NGC 2899 dans les Voiles - A distorted planetary nebula, NGC 2899 - This nebula is located about 3000 years from Earth. Image obtained by the 3.9m telescope of Siding Spring Planetary nebulae present a wide variety of forms on the sky, partly because of the random orientation of their parent stars but also because the nebulae themselves can have quite different intrinsic shapes. Theories about the shapes of planetaries range from the influence of binary companions to the central star to the distribution of material around the stars during its red giant phase, before the final outburst. Whatever the mechanism, most planetaries are symmetrical about one or more axes and only rarely do they appear curved like NGC 2899. A possible explanation is that the star from which the nebula was ejected had a large proper motion through space. The resulting nebula has the same velocity but vastly lower density than the star so is distorted by its encounter with the tenuous interstell

Planetary nebula NGC 2899 dans les Voiles - A distorted planetary nebula, NGC 2899 - This nebula is located about 3000 years from Earth. Image obtained by the 3.9m telescope of Siding Spring Planetary nebulae present a wide variety of forms on the sky, partly because of the random orientation of their parent stars but also because the nebulae themselves can have quite different intrinsic shapes. Theories about the shapes of planetaries range from the influence of binary companions to the central star to the distribution of material around the stars during its red giant phase, before the final outburst. Whatever the mechanism, most planetaries are symmetrical about one or more axes and only rarely do they appear curved like NGC 2899. A possible explanation is that the star from which the nebula was ejected had a large proper motion through space. The resulting nebula has the same velocity but vastly lower density than the star so is distorted by its encounter with the tenuous interstell

PIX4622995

Elephant tube nebula (VDB 142) in Cephee - The Elephant Trunk Nebula (VDB 142) in Cepheus - IC1396, VDB 142. Nebula located about 2700 years - light from Earth. The Elephant Trunk Nebula (IC 1396A) in Cepheus is part of the larger IC 1396 complex which spans a large area of the sky measuring 170 by 140 arc - minutes and is one of the brightest emission nebulae with a magnitude of 3.5. The western portion of IC 1396 contains the Elephant Trunk Nebula (IC 1396A) which is characterized with H - II emissions, dark lanes and globules as well as a small reflection nebula. The IC 1396 complex is technically a star cluster (aka Cr 439, Trumpler 37) owing to the presence of a developing open but loose cluster at the heart of this rich nebulosity. This open star cluster is comprised of 50 - 100 member stars which vary in brightness spanning an area of approximately 50 'in diameter and which are not very well detached from the background sky. This stellar nursery lies at a distance of 2,720 light

Elephant tube nebula (VDB 142) in Cephee - The Elephant Trunk Nebula (VDB 142) in Cepheus - IC1396, VDB 142. Nebula located about 2700 years - light from Earth. The Elephant Trunk Nebula (IC 1396A) in Cepheus is part of the larger IC 1396 complex which spans a large area of the sky measuring 170 by 140 arc - minutes and is one of the brightest emission nebulae with a magnitude of 3.5. The western portion of IC 1396 contains the Elephant Trunk Nebula (IC 1396A) which is characterized with H - II emissions, dark lanes and globules as well as a small reflection nebula. The IC 1396 complex is technically a star cluster (aka Cr 439, Trumpler 37) owing to the presence of a developing open but loose cluster at the heart of this rich nebulosity. This open star cluster is comprised of 50 - 100 member stars which vary in brightness spanning an area of approximately 50 'in diameter and which are not very well detached from the background sky. This stellar nursery lies at a distance of 2,720 light

Sebastian Voltmer

PIX4622327

Simeon's Hymn (colour litho)

Simeon's Hymn (colour litho)

Boullogne, Louis the Elder (c.1609-74) (after)

PRX3116760

Ring of black matter in the cluster of galaxies Cl 0024+17 - Dark matter ring in distant galaxy cluster - The cluster of galaxies Cl 0024+17 is located about 5 billion years - light in the constellation Pisces. By studying visible gravitational mirages, astronomers were able to demonstrate a ring of black matter around this cluster. On this image, the ring of black material (in blue) was digitally superimposed on the image obtained by the Hubble space telescope in November 2004 with the ACS camera. Discovery of a ring of dark matter in the cluster ZWCL0024+1652. The ring's discovery is among the strongest evidence yet that dark matter exists.The ring, which measures 2.6 million light - years across, was found in the cluster ZWCL0024+1652, located 5 billion light - years away from Earth. The astronomers team found the ring unexpectedly while they were mapping the distribution of dark matter within the cluster. Although astronomers cannot see dark matter, they can infer its existence in

Ring of black matter in the cluster of galaxies Cl 0024+17 - Dark matter ring in distant galaxy cluster - The cluster of galaxies Cl 0024+17 is located about 5 billion years - light in the constellation Pisces. By studying visible gravitational mirages, astronomers were able to demonstrate a ring of black matter around this cluster. On this image, the ring of black material (in blue) was digitally superimposed on the image obtained by the Hubble space telescope in November 2004 with the ACS camera. Discovery of a ring of dark matter in the cluster ZWCL0024+1652. The ring's discovery is among the strongest evidence yet that dark matter exists.The ring, which measures 2.6 million light - years across, was found in the cluster ZWCL0024+1652, located 5 billion light - years away from Earth. The astronomers team found the ring unexpectedly while they were mapping the distribution of dark matter within the cluster. Although astronomers cannot see dark matter, they can infer its existence in

PIX4565677

Galaxy Cluster Abell 1656 - Coma Cluster - Wide - field image around the Coma galaxy cluster - Large field around the Coma galaxy cluster. This cluster consists of about a thousand galaxies and is located 330 million light years away in the constellation Coma Berenices (Berenice hair). This cluster is dominated by two large elliptical galaxies (NGC 4874 on the right and NGC 4889 on the left). Below the middle of the image, to the right, is the galaxy NGC 4921. Mosaic of images obtained by the Oschin telescope of 1.2m from Mount Palomar through several filters and composed. The Coma cluster (Abell 1656) is a particularly rich cluster of individual galaxies (over 1000 members), most prominently the two giant ellipticals, NGC 4874 (right) and NGC 4889 (left). NGC 4921 is the small circular galaxy below and a little to the right of the centre of the image. The remaining members are mostly smaller ellipticals. The cluster is seen towards the constellation Coma Berenices, and is actually at

Galaxy Cluster Abell 1656 - Coma Cluster - Wide - field image around the Coma galaxy cluster - Large field around the Coma galaxy cluster. This cluster consists of about a thousand galaxies and is located 330 million light years away in the constellation Coma Berenices (Berenice hair). This cluster is dominated by two large elliptical galaxies (NGC 4874 on the right and NGC 4889 on the left). Below the middle of the image, to the right, is the galaxy NGC 4921. Mosaic of images obtained by the Oschin telescope of 1.2m from Mount Palomar through several filters and composed. The Coma cluster (Abell 1656) is a particularly rich cluster of individual galaxies (over 1000 members), most prominently the two giant ellipticals, NGC 4874 (right) and NGC 4889 (left). NGC 4921 is the small circular galaxy below and a little to the right of the centre of the image. The remaining members are mostly smaller ellipticals. The cluster is seen towards the constellation Coma Berenices, and is actually at

PIX4565314

Centaur Omega globular cluster - NGC 5139, Omega Centauri globular cluster - Visible to the naked eye in the southern hemisphere, Centaurus Omega is the most massive globular cluster in the galaxy. About 17,000 light years ago, millions of stars nearly 12 billion years old are concentrated here. This image obtained by the ACS camera of the Hubble space telescope and observations made by the southern Gemini telescope seem to indicate the presence of a black hole in the center of the cluster. NGC 5139 is the largest and most spectacular globular cluster in the entire night sky, and the largest in our galaxy. At 36 arc minutes, Omega Centauri is larger than the full moon in apparent size. It is located about 17,000 light years away from our Sun and at 4th magnitude, is easily visible without a telescope as a “” star”” in the constellation of Centaurus. It contains about 2 million stars, almost twice as many as M13. This composite image obtained with the Advanced Camera for Surveys onboard

Centaur Omega globular cluster - NGC 5139, Omega Centauri globular cluster - Visible to the naked eye in the southern hemisphere, Centaurus Omega is the most massive globular cluster in the galaxy. About 17,000 light years ago, millions of stars nearly 12 billion years old are concentrated here. This image obtained by the ACS camera of the Hubble space telescope and observations made by the southern Gemini telescope seem to indicate the presence of a black hole in the center of the cluster. NGC 5139 is the largest and most spectacular globular cluster in the entire night sky, and the largest in our galaxy. At 36 arc minutes, Omega Centauri is larger than the full moon in apparent size. It is located about 17,000 light years away from our Sun and at 4th magnitude, is easily visible without a telescope as a “” star”” in the constellation of Centaurus. It contains about 2 million stars, almost twice as many as M13. This composite image obtained with the Advanced Camera for Surveys onboard

PIX4564426

Centaur Omega globular cluster - NGC 5139 Omega Centauri globular cluster - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centaur contains several million stars and is one of the older objects in our galaxy. The globular cluster Omega Centauri - - with as many as ten million stars - - is seen in all its splendour in this image captured with the WFI camera from Eso's La Silla Observatory. The image shows only the central part of the cluster - - about the size of the full moon on the sky (half a degree). North is up, East is to the left. This colour image is a composite of B, V and I filtered images. Note that because WFI is equipped with a mosaic detector, there are two small gaps in the image which were filled with lower quality data from the Digitized Sky Survey. Containing millions of stars, this globular cluster is located roughly 17,000 light - years from Earth in the constellation of Centaurus. Omega Centauri is about 150 light - years

Centaur Omega globular cluster - NGC 5139 Omega Centauri globular cluster - Located 17,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centaur contains several million stars and is one of the older objects in our galaxy. The globular cluster Omega Centauri - - with as many as ten million stars - - is seen in all its splendour in this image captured with the WFI camera from Eso's La Silla Observatory. The image shows only the central part of the cluster - - about the size of the full moon on the sky (half a degree). North is up, East is to the left. This colour image is a composite of B, V and I filtered images. Note that because WFI is equipped with a mosaic detector, there are two small gaps in the image which were filled with lower quality data from the Digitized Sky Survey. Containing millions of stars, this globular cluster is located roughly 17,000 light - years from Earth in the constellation of Centaurus. Omega Centauri is about 150 light - years

PIX4564443

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in infrared by the Hubble space telescope. The image reveals in the center of the image a young star accompanied by a jet of material. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in infrared light, the image shows the dense column and the surrounding greenish - coloured gas all but disappear. Only a faint outline of the pillar remains. By penetrating the wall of gas and dust, the infrared vision of WFC3 reveals the infant star that is probably blasting the jet. Part of the jet nearest the star is more prominent in this view. These features can be seen because infrared light, unlike visible light, can pass through the dust. Hubble's Wide

Birth of stars in the nebula NGC 3372 - Star formation in the Carina Nebula - Detail of the nebula of the Carene seen in infrared by the Hubble space telescope. The image reveals in the center of the image a young star accompanied by a jet of material. NGC 3372 is located about 7000 light years away from Earth. Image obtained in July 2009. Composed of gas and dust, the pictured pillar resides in a tempestuous stellar nursery called the Carina Nebula, located 7500 light - years away in the southern constellation of Carina. Taken in infrared light, the image shows the dense column and the surrounding greenish - coloured gas all but disappear. Only a faint outline of the pillar remains. By penetrating the wall of gas and dust, the infrared vision of WFC3 reveals the infant star that is probably blasting the jet. Part of the jet nearest the star is more prominent in this view. These features can be seen because infrared light, unlike visible light, can pass through the dust. Hubble's Wide

PIX4619096

Old open cluster NGC 2818 and planetary nebula NGC 2818A - Old Open cluster NGC 2818 and planetary nebula in Pyxis - The open cluster NGC 2818 in the southern constellation of the Compsole is distinguished by the fact that most of its bright stars have already become supernovae; this indicates that this cluster must be very old, perhaps a billion years. It has a planetary nebula, NGC 2818A, a star at the end of life. These objects are located approximately 10,000 light years away from Earth. The open cluster NGC 2818 is not very conspicuous because most of the brilliant, massive stars that normally distinguish such groupings have vanished as supernovae, indicating that the cluster is quite mature. The massive stars dominating the scene in young clusters leaving the fainter, long - lived stars behind. Eventually, they too come to the end of their lives, throwing off their outer layers as planetary nebulae. This one, identified as NGC 2818A, is particularly graceful, and its existence su

Old open cluster NGC 2818 and planetary nebula NGC 2818A - Old Open cluster NGC 2818 and planetary nebula in Pyxis - The open cluster NGC 2818 in the southern constellation of the Compsole is distinguished by the fact that most of its bright stars have already become supernovae; this indicates that this cluster must be very old, perhaps a billion years. It has a planetary nebula, NGC 2818A, a star at the end of life. These objects are located approximately 10,000 light years away from Earth. The open cluster NGC 2818 is not very conspicuous because most of the brilliant, massive stars that normally distinguish such groupings have vanished as supernovae, indicating that the cluster is quite mature. The massive stars dominating the scene in young clusters leaving the fainter, long - lived stars behind. Eventually, they too come to the end of their lives, throwing off their outer layers as planetary nebulae. This one, identified as NGC 2818A, is particularly graceful, and its existence su

PIX4622981

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away. The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the st

Swan and Lyra Constellations - Cygnus and Lyra constellations - Upper left, near the nebula North America (NGC 7000), the brightest star in the constellation of Swan, Deneb; the Swan covers most of the image. On the top right, Vega de la Lyre, the fifth brightest star in the sky, located about 25 years away from Earth. Lyra is at the upper right of the photo and Cygnus takes of most of the rest of the frame. Brilliant Vega, the fifth brightest star in the night sky, is the brightest star in the image. It is located about 25 light years away. Bright red emission nebulae can also be seen in Cygnus, including the North America Nebula and nebulosity around Gamma Cygni at left. Deneb, visible just above and to the right of the North America Nebula, is the 20th brightest star in the night sky and is located about 1,500 light years away. The rich star clouds in Cygnus are broken by large dark lanes and rifts in the summer Milky Way. The dark lanes are clouds of dark matter that obscure the st

Jerry Lodriguss

PIX4590327

Futuristic advertising poster for tourism on Trappist-1e - Illustration - Futuristic Advert for tourism on Trappist-1e - Illustration: Advertising promoting tourism on Trappist-1e. This exoplanet is orbiting in the habitable zone of the star system TRAPPIST-1, a red dwarf star located at a distance of about 40 light years from the Sun in the constellation Aquarius. At least seven exoplanets the size of the Earth orbit this star. Some 40 light-years from Earth, a planet called Trappist-1e offers a heart-stopping view: brilliant objects in a red sky, looming like larger and smaller versions of our own moon. But these are no moons. They are Earth-sized planets in a spectacular planetary system outside our own. These seven rocky worlds huddle around their small, dim, red star, like a family around a campfire. Any of them could harbor liquid water, but the planet shown here, fourth from the TRAPPIST-1 star, is in the habitable zone, the area around the star where liquid water is most likely

Futuristic advertising poster for tourism on Trappist-1e - Illustration - Futuristic Advert for tourism on Trappist-1e - Illustration: Advertising promoting tourism on Trappist-1e. This exoplanet is orbiting in the habitable zone of the star system TRAPPIST-1, a red dwarf star located at a distance of about 40 light years from the Sun in the constellation Aquarius. At least seven exoplanets the size of the Earth orbit this star. Some 40 light-years from Earth, a planet called Trappist-1e offers a heart-stopping view: brilliant objects in a red sky, looming like larger and smaller versions of our own moon. But these are no moons. They are Earth-sized planets in a spectacular planetary system outside our own. These seven rocky worlds huddle around their small, dim, red star, like a family around a campfire. Any of them could harbor liquid water, but the planet shown here, fourth from the TRAPPIST-1 star, is in the habitable zone, the area around the star where liquid water is most likely

PIX4608509

Elliptical galaxy NGC 4881 and distant galaxies - Elliptical galaxy NGC 4881 and distant galaxies - The elliptical galaxy NGC 4881 (upper left) is about 300 million years away - light from Earth. NGC 4881 is located in the Coma galaxy cluster that contains at least 1,000 galaxies and is five times farther from us than the Virgin's cluster. Almost all the objects visible in this photo are located far behind the Coma cluster, except for the spiral galaxy to the right of Ngc 4881. Image obtained by the Hubble Space Telescope in 1994. This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. The brightest object in this picture is NGC 4881. It is a 13th - magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. Except for a 16th - magnitude Coma spiral at the right and a few foreground sta

Elliptical galaxy NGC 4881 and distant galaxies - Elliptical galaxy NGC 4881 and distant galaxies - The elliptical galaxy NGC 4881 (upper left) is about 300 million years away - light from Earth. NGC 4881 is located in the Coma galaxy cluster that contains at least 1,000 galaxies and is five times farther from us than the Virgin's cluster. Almost all the objects visible in this photo are located far behind the Coma cluster, except for the spiral galaxy to the right of Ngc 4881. Image obtained by the Hubble Space Telescope in 1994. This photo mosaic, which shows a field of distant galaxies, is a computer enhanced reproduction of a picture taken 4 March 1994 with the repaired Hubble Space Telescope. The brightest object in this picture is NGC 4881. It is a 13th - magnitude elliptical galaxy in the outskirts of the Coma Cluster, a great cluster of galaxies more than 5 times farther away than the Virgo Cluster. Except for a 16th - magnitude Coma spiral at the right and a few foreground sta

PIX4611992

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Image made with Siding Spring's 3.9m telescope. Our view towards the centre of the Galaxy is obscured by extensive clouds of interstellar dust in the direction of the constellation of Sagittarius. The large - scale, patchy nature of the obscuration can be seen with the unaided eye and it is evident on smaller scales from the uneven distribution of background stars across this picture. Light from bright stars within the dust produces the two blue reflection nebulae (NGC 6589 and 6590), and these stars are members of a loose open cluster of stars, NGC 6595 (Sharpless 37) which is at a distance of about 5,900 light years. A large, almost transparent cloud of hydrogen, mixed with traces of dust, glows with a characteristic magenta hue over most of the field of view. This is known as IC 1283, 1284 and

Nebulae IC 1283 - 84 and NGC 6589 - 90 in Sagittarius - Nebulosity in Sagittarius, NGC 6589 - 90 - These nebulae are located in Sagittarius at a distance of about 5900 light years from Earth. Image made with Siding Spring's 3.9m telescope. Our view towards the centre of the Galaxy is obscured by extensive clouds of interstellar dust in the direction of the constellation of Sagittarius. The large - scale, patchy nature of the obscuration can be seen with the unaided eye and it is evident on smaller scales from the uneven distribution of background stars across this picture. Light from bright stars within the dust produces the two blue reflection nebulae (NGC 6589 and 6590), and these stars are members of a loose open cluster of stars, NGC 6595 (Sharpless 37) which is at a distance of about 5,900 light years. A large, almost transparent cloud of hydrogen, mixed with traces of dust, glows with a characteristic magenta hue over most of the field of view. This is known as IC 1283, 1284 and

PIX4619870

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The dust lanes in Messier 16 (NGC 6611) - Located in the Snake, this nebula is about 6000 years away from Earth. The M16 star cluster is a cluster of young stars formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image made with Siding Spring's 3.9m telescope. There are few clearer examples anywhere of the intimate relationship between dust, gas and young stars than M16. We see a young cluster of stars (NGC 6611) which formed about 2 million years ago, illuminating a cloud of hydrogen gas. The gas is also dusty, and in places the dust is dense enough to prevent starlight from reaching the gas and making it glow with its distinctive red hue. The luminous hydrogen provides a vivid background against which are seen numerous dark lanes and discrete globules of dust. Many of the dusty clouds are edged with bright rims which indicate the direction

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The dust lanes in Messier 16 (NGC 6611) - Located in the Snake, this nebula is about 6000 years away from Earth. The M16 star cluster is a cluster of young stars formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image made with Siding Spring's 3.9m telescope. There are few clearer examples anywhere of the intimate relationship between dust, gas and young stars than M16. We see a young cluster of stars (NGC 6611) which formed about 2 million years ago, illuminating a cloud of hydrogen gas. The gas is also dusty, and in places the dust is dense enough to prevent starlight from reaching the gas and making it glow with its distinctive red hue. The luminous hydrogen provides a vivid background against which are seen numerous dark lanes and discrete globules of dust. Many of the dusty clouds are edged with bright rims which indicate the direction

PIX4619969

Eagle Nebula (IC 4703) and M16 star cluster in Snake - The Eagle nebula in Serpens - Eagle Nebula (IC 4703) and M16 star cluster in Snake. The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image obtained with a telescope 61 cm in diameter. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are

Eagle Nebula (IC 4703) and M16 star cluster in Snake - The Eagle nebula in Serpens - Eagle Nebula (IC 4703) and M16 star cluster in Snake. The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image obtained with a telescope 61 cm in diameter. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are

Adam Block

PIX4620009

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

Nebula Trifide (M20) in the constellation Sagittarius - Trifid nebula (M20) in Sagittarius - View of the Trifide nebula (M20/NGC 6514) located in the constellation Sagittarius between 5000 and 10,000 years - light from Earth. Image obtained by Siding Spring's 3.9m telescope. The spectacular Trifid nebula (Messier 20) is one of the best known in the sky. It is a striking mixture of brilliant red light emitted from excited hydrogen gas and the soft blue glow of a reflection nebula. The blue arises from starlight, scattered by dust particles between the stars. The size of the particles is minute, similar to those of smoke, which also has a bluish hue. However, the scattered light is not a pure blue, and if we see it through a medium that is yellow (i.e. absorbs blue light) some green colouration remains. This effect can be seen in some of the darker parts of the faint reflection nebula that surrounds the Trifid, where partial absorption of light by foreground dust provides a yellow 'filte

PIX4619490

Galaxy NGC 660 in Pisces - Polar ring galaxy NGC 660 in Pisces - The galaxy NGC 660 is located about 20 million light years ago in the constellation Pisces. It is a polar ring galaxy, a fairly rare type of galaxy that features a ring of gas and dust almost perpendicular to the main galactic plane. Image made with a telescope 61 cm in diameter. NGC 660 is described as being a “” polar ring””” galaxy. Another remarkable picture of this rare type of galaxy was taken by the Hubble Space Telescope - the example in this case is NGC4650A. These galaxies are believed to have formed from the collision of two galaxies in the past. In the case of NGC 660 it would appear that our perspective is inclined from the axis of the disk so that the foreground portion of the ring does not cross the plane in the middle - but instead towards one side. The central region of this galaxy is considered a “” starburst”” due to the extreme amount of luminous star formation.This galaxy is estimated to be 24 million

Galaxy NGC 660 in Pisces - Polar ring galaxy NGC 660 in Pisces - The galaxy NGC 660 is located about 20 million light years ago in the constellation Pisces. It is a polar ring galaxy, a fairly rare type of galaxy that features a ring of gas and dust almost perpendicular to the main galactic plane. Image made with a telescope 61 cm in diameter. NGC 660 is described as being a “” polar ring””” galaxy. Another remarkable picture of this rare type of galaxy was taken by the Hubble Space Telescope - the example in this case is NGC4650A. These galaxies are believed to have formed from the collision of two galaxies in the past. In the case of NGC 660 it would appear that our perspective is inclined from the axis of the disk so that the foreground portion of the ring does not cross the plane in the middle - but instead towards one side. The central region of this galaxy is considered a “” starburst”” due to the extreme amount of luminous star formation.This galaxy is estimated to be 24 million

Adam Block

PIX4609435

Barree spiral galaxy NGC 1097 - NGC 1097, a barred spiral galaxy and elliptical companion - Located at a distance of about 45 million years - light in the constellation of the Furnneau, NGC 1097 is subject to intense star formation and is an active nucleus galaxy with a supermassive black hole in its heart. At the top right of the image, a special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by Siding Spring's 3.9m telescope. NGC 1097 is a fine, barred spiral galaxy seen from a distance of about 50 million light years. The galaxy is unusual in several respects. It is a fairly strong radio source and is also bright at far infrared wavelenghts, indicating the presence of warm dust. The galaxy is also interacting woth a small elliptical galaxy, seen in the upper right (NW) corner of the picture. This galaxy shows the subtle interleaved 'shells' or stepped changes in brightness resulting from the interaction. Finally, the galaxy is k

Barree spiral galaxy NGC 1097 - NGC 1097, a barred spiral galaxy and elliptical companion - Located at a distance of about 45 million years - light in the constellation of the Furnneau, NGC 1097 is subject to intense star formation and is an active nucleus galaxy with a supermassive black hole in its heart. At the top right of the image, a special elliptical satellite galaxy, NGC 1097A, probably interacted with NGC 1097 in the past. Image obtained by Siding Spring's 3.9m telescope. NGC 1097 is a fine, barred spiral galaxy seen from a distance of about 50 million light years. The galaxy is unusual in several respects. It is a fairly strong radio source and is also bright at far infrared wavelenghts, indicating the presence of warm dust. The galaxy is also interacting woth a small elliptical galaxy, seen in the upper right (NW) corner of the picture. This galaxy shows the subtle interleaved 'shells' or stepped changes in brightness resulting from the interaction. Finally, the galaxy is k

PIX4609643

Charles I when Duke of York c.1611-16 (w/c on vellum laid down on playing card)

Charles I when Duke of York c.1611-16 (w/c on vellum laid down on playing card)

Oliver, Isaac (c.1565-1617)

ROC3707676

Imperial Delhi: Index Plan of Lay-out, c.1913 (colour litho)

Imperial Delhi: Index Plan of Lay-out, c.1913 (colour litho)

English School, (20th century)

CH4073719

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