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Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, bottom left, with the bright star Aldebaran. In the center, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Pleiades is a relatively nearby open cluster, which is located at a distance of 440 light years. The Hyades (at bottom left) is another open cluster located even closer at a distance of 153 light years

Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, bottom left, with the bright star Aldebaran. In the center, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Pleiades is a relatively nearby open cluster, which is located at a distance of 440 light years. The Hyades (at bottom left) is another open cluster located even closer at a distance of 153 light years

Vincent Toporenko

PIX4568749

Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades is at right. Both are open clusters in the constellation of Taurus. This skyview is corresponding to binoculars and small telescopes

Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades is at right. Both are open clusters in the constellation of Taurus. This skyview is corresponding to binoculars and small telescopes

PIX4568855

Hyades and Pleiades open clusters - Hyades and Pleaides star clusters in Taurus - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster (M45). These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades (M45) is at right. Both are open clusters in the constellation of Taurus

Hyades and Pleiades open clusters - Hyades and Pleaides star clusters in Taurus - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster (M45). These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades (M45) is at right. Both are open clusters in the constellation of Taurus

Sebastian Voltmer

PIX4568946

Nebula around the star R Aquarii - R Aquarii and its peculiar nebula - This star is actually a binary system composed of a giant red star (in the center) and a white dwarf (invisible in this photo). Image obtained by Siding Spring's 3.9m telescope. The star at the centre of this unique nebula has been known to be variable since 1810. It has a period of a little over a year, but the brightness shifts are erratic, ranging from the threshold of naked eye visibility to about 200 times fainter. At the centre of the nebula is a symbiotic star, an interacting pair consisting of a red giant and white dwarf. The dwarf draws in material from the giant, occasionally ejecting the surplus as the strange loops seen in the colour picture. The white dwarf itself is invisible and the light from the red dwarf is truly red, perhaps because the whole system is embedded in very dusty nebula which absorbs what blue light there is

Nebula around the star R Aquarii - R Aquarii and its peculiar nebula - This star is actually a binary system composed of a giant red star (in the center) and a white dwarf (invisible in this photo). Image obtained by Siding Spring's 3.9m telescope. The star at the centre of this unique nebula has been known to be variable since 1810. It has a period of a little over a year, but the brightness shifts are erratic, ranging from the threshold of naked eye visibility to about 200 times fainter. At the centre of the nebula is a symbiotic star, an interacting pair consisting of a red giant and white dwarf. The dwarf draws in material from the giant, occasionally ejecting the surplus as the strange loops seen in the colour picture. The white dwarf itself is invisible and the light from the red dwarf is truly red, perhaps because the whole system is embedded in very dusty nebula which absorbs what blue light there is

PIX4571946

Open cluster NGC 4755 - Jewel Box - The Jewel Box star cluster - The NGC 4755 cluster is located in the constellation of the Southern Cross at a distance of 6400 years - light from Earth. The bright orange star on the top right is Kappa Crucis, a supergiant red star. This cluster contains about fifty stars formed about 16 million years ago. This close-up of the center of the cluster was obtained with the Hubble Space Telescope. This image is a “” close - up 'view from the NASA/ESA Hubble Space Telescope of NGC 4755, or the Jewel Box cluster. Several very bright, pale blue supergiant stars, a solitary ruby - red supergiant and a variety of other brilliantly coloured stars are visible in the image, as well as many much fainter ones, often with intriguing colours. The huge variety in brightness exists because the brighter stars are 15 to 20 times the mass of the Sun, while the dimmest stars are less than half the mass of the Sun. This is the first image of an open galactic cluster with im

Open cluster NGC 4755 - Jewel Box - The Jewel Box star cluster - The NGC 4755 cluster is located in the constellation of the Southern Cross at a distance of 6400 years - light from Earth. The bright orange star on the top right is Kappa Crucis, a supergiant red star. This cluster contains about fifty stars formed about 16 million years ago. This close-up of the center of the cluster was obtained with the Hubble Space Telescope. This image is a “” close - up 'view from the NASA/ESA Hubble Space Telescope of NGC 4755, or the Jewel Box cluster. Several very bright, pale blue supergiant stars, a solitary ruby - red supergiant and a variety of other brilliantly coloured stars are visible in the image, as well as many much fainter ones, often with intriguing colours. The huge variety in brightness exists because the brighter stars are 15 to 20 times the mass of the Sun, while the dimmest stars are less than half the mass of the Sun. This is the first image of an open galactic cluster with im

PIX4568246

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but according to their masses they will follow different destinies

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but according to their masses they will follow different destinies

P. Carril

PIX4573016

August 24, 2016: The three stars that make up the Centaur Alpha system are the closest stars to the Sun. Proxima du Centaur is located at a distance of 4.22 light years from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 light years from the Sun. These two stars are relatively similar to the Sun. Although Proxima of Centauri is distant from the Alpha couple of Centauri, its movement seems to link it to this system and is sometimes called Alpha Centauri C - This image of the sky around the bright star Alpha Centauri AB also shows the much fainter red dwarf star, Proxima Centauri, the closest star to the Solar System. The picture was created from pictures forming part of the Digitized Sky Survey 2. The blue halo around Alpha Centauri AB is an artifact of the photographic process, the star is really pale yellow in colour like the Sun. Proxima Centauri appears as a faint red star towards the lower-right of the picture

August 24, 2016: The three stars that make up the Centaur Alpha system are the closest stars to the Sun. Proxima du Centaur is located at a distance of 4.22 light years from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 light years from the Sun. These two stars are relatively similar to the Sun. Although Proxima of Centauri is distant from the Alpha couple of Centauri, its movement seems to link it to this system and is sometimes called Alpha Centauri C - This image of the sky around the bright star Alpha Centauri AB also shows the much fainter red dwarf star, Proxima Centauri, the closest star to the Solar System. The picture was created from pictures forming part of the Digitized Sky Survey 2. The blue halo around Alpha Centauri AB is an artifact of the photographic process, the star is really pale yellow in colour like the Sun. Proxima Centauri appears as a faint red star towards the lower-right of the picture

PIX4650886

Artist's view of a binary star - Binary star. Artwor

Artist's view of a binary star - Binary star. Artwor

S. Numazawa

PIX4572606

Nova de l'Eagle - Nova Aquilae. Artwork - Artist's view of a nova, a white dwarf star that attracts the material of a companion star at the end of life, a red giant, and compresses these gases and then unleash a nuclear fusion reaction releasing a huge amount of energy in the form of a brief, extremely bright light. Here the artist showed the binary system just before the explosion of the nova. The artist's illustration depicts a classical nova binary system just before an explosion on the surface of the white dwarf. Classical novas occur in a system where a white dwarf closely orbits a normal, companion star. In this illustration, gas is flowing from the large red, companion star into a disk and then onto the white dwarf that is hidden inside the white area. As the gas flows ever closer to the white dwarf, it gets increasingly hotter, as indicated by the change in colors from yellow to white. When the explosion occurs, it engulfs the disk of gas and the red companion star

Nova de l'Eagle - Nova Aquilae. Artwork - Artist's view of a nova, a white dwarf star that attracts the material of a companion star at the end of life, a red giant, and compresses these gases and then unleash a nuclear fusion reaction releasing a huge amount of energy in the form of a brief, extremely bright light. Here the artist showed the binary system just before the explosion of the nova. The artist's illustration depicts a classical nova binary system just before an explosion on the surface of the white dwarf. Classical novas occur in a system where a white dwarf closely orbits a normal, companion star. In this illustration, gas is flowing from the large red, companion star into a disk and then onto the white dwarf that is hidden inside the white area. As the gas flows ever closer to the white dwarf, it gets increasingly hotter, as indicated by the change in colors from yellow to white. When the explosion occurs, it engulfs the disk of gas and the red companion star

PIX4572591

Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades is at right. Both are open clusters in the constellation of Tauru

Hyades and Pleiades open clusters - Hyades and Pleiades open clusters - The Hyades cluster, on the left, with the brilliant star Aldebaran. On the right, the Pleiades cluster. These two clusters belong to the constellation of the Taurus of which Aldebaran is the brightest star; it is a red giante. The Hyades is seen at left, containing the bright star Aldeberan. The Pleiades is at right. Both are open clusters in the constellation of Tauru

Jerry Lodriguss

PIX4568751

Hyad cluster - Mel 25 - The Hyades cluster in Taurus - Mel 25, the Hyades, is an open cluster visible to the naked eye in the constellation Taurus. The red giant star Aldebaran is the brightest star in the image. On the left, the small open cluster NGC 1647. The Hyades is a beautiful open cluster in Taurus that is easily visible to the unaided - eye. Brilliant Aldeberan, a 0.9 magnitude red giant star, dominates the cluster which is located about 153 light years away. Smaller open cluster NGC 1647 is on the left in the image, some 45 acr minutes in diameter at magnitude 6.4

Hyad cluster - Mel 25 - The Hyades cluster in Taurus - Mel 25, the Hyades, is an open cluster visible to the naked eye in the constellation Taurus. The red giant star Aldebaran is the brightest star in the image. On the left, the small open cluster NGC 1647. The Hyades is a beautiful open cluster in Taurus that is easily visible to the unaided - eye. Brilliant Aldeberan, a 0.9 magnitude red giant star, dominates the cluster which is located about 153 light years away. Smaller open cluster NGC 1647 is on the left in the image, some 45 acr minutes in diameter at magnitude 6.4

Jerry Lodriguss

PIX4568904

The evolution of the Sun - Illustration - The evolution of the Sun - Illustration - Artist's view of the evolution of a yellow star, such as the Sun

The evolution of the Sun - Illustration - The evolution of the Sun - Illustration - Artist's view of the evolution of a yellow star, such as the Sun

P. Carril

PIX4573041

Artist's view of a nova recurrente - Recurrent nova. Artwork - Artist's view of a nova, a white dwarf star that attracts the material of a companion star at the end of life, a red giant, and compresses these gases and then releases a nuclear fusion reaction releasing a huge amount of energy in the form of a brief, extremely bright light. A nova recurrente is a star with at least two nova-type explosions

Artist's view of a nova recurrente - Recurrent nova. Artwork - Artist's view of a nova, a white dwarf star that attracts the material of a companion star at the end of life, a red giant, and compresses these gases and then releases a nuclear fusion reaction releasing a huge amount of energy in the form of a brief, extremely bright light. A nova recurrente is a star with at least two nova-type explosions

S. Numazawa

PIX4572573

Antares star and globular clusters in the Scorpion - The nebula around Antares and globular clusters - Supergeante star Antares seen at the 3.9m telescope from Siding Spring. At the top right is the globular cluster NGC 6144, at the extreme right, cluster M4. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid part

Antares star and globular clusters in the Scorpion - The nebula around Antares and globular clusters - Supergeante star Antares seen at the 3.9m telescope from Siding Spring. At the top right is the globular cluster NGC 6144, at the extreme right, cluster M4. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid part

PIX4571773

Star Antares in the Scorpion - The nebula around Antares - Supergeant star Antares seen at the 3.9m telescope of Siding Spring. To his right is the globular cluster NGC 6144. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid particles begin to appear, made of the heavier trace elements formed with in the star. Th

Star Antares in the Scorpion - The nebula around Antares - Supergeant star Antares seen at the 3.9m telescope of Siding Spring. To his right is the globular cluster NGC 6144. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid particles begin to appear, made of the heavier trace elements formed with in the star. Th

PIX4571707

Exoplanete BD+48 738c - Illustration of an extrasolar planet orbiting a red dwarf star. In the sky, close to the dwarf star, the giant red star BD+48 738. It's a large planet, which may be a small brown dwarf, that orbits a red dwarf star. According to one reference: “”... one of the massive, dying stars - - BD+48 738 - - is accompanied not only by an enormous, Jupiter - like planet, but also by a second, mystery object. According to the team, this object could be another planet, a low - mass star, or - - most interestingly - - a brown dwarf, which is a star - like body that is intermediate in mass between the coolest stars and giant planets.

Exoplanete BD+48 738c - Illustration of an extrasolar planet orbiting a red dwarf star. In the sky, close to the dwarf star, the giant red star BD+48 738. It's a large planet, which may be a small brown dwarf, that orbits a red dwarf star. According to one reference: “”... one of the massive, dying stars - - BD+48 738 - - is accompanied not only by an enormous, Jupiter - like planet, but also by a second, mystery object. According to the team, this object could be another planet, a low - mass star, or - - most interestingly - - a brown dwarf, which is a star - like body that is intermediate in mass between the coolest stars and giant planets.

Miller, Ron (b.1947)

PIX4574061

Variable star Mira Ceti view in ultraviolet - Star Mira Ceti seen in ultraviolet - Ultraviolet view of the star Mira of the Whale revealing a long train of material ejected by the large red star. This trail extends over 13 years - light. Mosaic of images obtained by the Galex satellite in November and December 2006. Ultraviolet image of the star Mira taken with the Galex satellite in November and December 2006. In this image, Mira is moving from left to right. It is visible as the small white dot in the bulb shape at right. The shed material can be seen in light blue. The dots in the picture are stars and distant galaxies. The large blue dot at left is a star that is closer to us than Mira. Mira is traveling so fast (130 kilometers per second) that it's creating a bow shock, or build - up of gas, in front of it, as can be seen here at right

Variable star Mira Ceti view in ultraviolet - Star Mira Ceti seen in ultraviolet - Ultraviolet view of the star Mira of the Whale revealing a long train of material ejected by the large red star. This trail extends over 13 years - light. Mosaic of images obtained by the Galex satellite in November and December 2006. Ultraviolet image of the star Mira taken with the Galex satellite in November and December 2006. In this image, Mira is moving from left to right. It is visible as the small white dot in the bulb shape at right. The shed material can be seen in light blue. The dots in the picture are stars and distant galaxies. The large blue dot at left is a star that is closer to us than Mira. Mira is traveling so fast (130 kilometers per second) that it's creating a bow shock, or build - up of gas, in front of it, as can be seen here at right

PIX4572330

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but according to their masses they will follow different destinies

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but according to their masses they will follow different destinies

P. Carril

PIX4573022

Starfield in Sagittarius/Swarms of Young and Older Stars Yield Clues to our Galaxy's Formation: Stars in Sagittarius seen by the Hubble space telescope. Aging red giant stars coexist with their more plentiful younger cousins, the smaller, white, Sun-like stars, in this crowded region of our galaxy's ancient central hub, or bulge. Most of the bright blue stars in the image are probably recently formed stars located in the foreground, in the galaxy's disk. The image is a composite of exposures taken in near-infrared and visible light with Hubble's Wide Field Camera 3

Starfield in Sagittarius/Swarms of Young and Older Stars Yield Clues to our Galaxy's Formation: Stars in Sagittarius seen by the Hubble space telescope. Aging red giant stars coexist with their more plentiful younger cousins, the smaller, white, Sun-like stars, in this crowded region of our galaxy's ancient central hub, or bulge. Most of the bright blue stars in the image are probably recently formed stars located in the foreground, in the galaxy's disk. The image is a composite of exposures taken in near-infrared and visible light with Hubble's Wide Field Camera 3

PIX4607530

Hyad cluster - Mel 25 - The Hyades cluster in Taurus - Mel 25, the Hyades, is an open cluster visible to the naked eye in the constellation Taurus. The red giant star Aldebaran is the brightest star in the image. On the left, the small open cluster NGC 1647. The Hyades is a beautiful open cluster in Taurus that is easily visible to the unaided - eye. Brilliant Aldeberan, a 0.9 magnitude red giant star, dominates the cluster which is located about 153 light years away. Smaller open cluster NGC 1647 is on the left in the image, some 45 acr minutes in diameter at magnitude 6.4

Hyad cluster - Mel 25 - The Hyades cluster in Taurus - Mel 25, the Hyades, is an open cluster visible to the naked eye in the constellation Taurus. The red giant star Aldebaran is the brightest star in the image. On the left, the small open cluster NGC 1647. The Hyades is a beautiful open cluster in Taurus that is easily visible to the unaided - eye. Brilliant Aldeberan, a 0.9 magnitude red giant star, dominates the cluster which is located about 153 light years away. Smaller open cluster NGC 1647 is on the left in the image, some 45 acr minutes in diameter at magnitude 6.4

Jerry Lodriguss

PIX4568911

Constellation of Taurus - Constellation of Taurus - Taurus, (the Bull) is one of the most ancient constellations, and appears in artefacts as old as western civilisation itself. The bull is still a figure of strength and fertility in cultures around the world. In the sky the distinctive 'V' shape of his head and long horns tipped by beta (ss) and zeta Tau is easily recognised. If the purpose of the horns was in doubt, the English name for ss Tau is Alnath, meaning 'the butting one'. The bull's glowing red eye of Aldebaran completes the picture, and its location between the delicate Pleiades and the aggressive stance of Orion makes Taurus hard to overlook. Despite its masculine connotations, the constellation is rich in female icons; both the Hyades and Pleiades star clusters are daughters of Atlas and both are important astronomically. The Pleiades (or the Seven Sisters) are a group of young stars at a distance of about 440 light years and on long exposure photographs are seen to be em

Constellation of Taurus - Constellation of Taurus - Taurus, (the Bull) is one of the most ancient constellations, and appears in artefacts as old as western civilisation itself. The bull is still a figure of strength and fertility in cultures around the world. In the sky the distinctive 'V' shape of his head and long horns tipped by beta (ss) and zeta Tau is easily recognised. If the purpose of the horns was in doubt, the English name for ss Tau is Alnath, meaning 'the butting one'. The bull's glowing red eye of Aldebaran completes the picture, and its location between the delicate Pleiades and the aggressive stance of Orion makes Taurus hard to overlook. Despite its masculine connotations, the constellation is rich in female icons; both the Hyades and Pleiades star clusters are daughters of Atlas and both are important astronomically. The Pleiades (or the Seven Sisters) are a group of young stars at a distance of about 440 light years and on long exposure photographs are seen to be em

PIX4594061

Artist's view of the star Zeta Piscium: The star Zeta Piscium seen in the sky of an exoplanet. This star is actually a binary star composed of a red giant and a white dwarf. Zeta Piscium is a binary star system consisting of a red giant and a white dwarf

Artist's view of the star Zeta Piscium: The star Zeta Piscium seen in the sky of an exoplanet. This star is actually a binary star composed of a red giant and a white dwarf. Zeta Piscium is a binary star system consisting of a red giant and a white dwarf

Miller, Ron (b.1947)

PIX4572721

Nebula IC 2220 in the Carene - A mass - loss star in IC 2220 - This nebula is illuminated by a giant red star, the star HD 65670. Image obtained by Siding Spring's 3.9m telescope. The bright, supergiant star at the centre of this nebula is known only by its catalog designation, HD 65750. The nebulosity around the star is the result of light reflected by dust surrounding it. The dust is thought to consist mainly of particles of silica condensed from material which the star is losing from its distended surface at a fairly steady rate. The rate of mass loss is much higher than in normal stars and is sufficient to produce the reflection nebula IC 2220. The stellar nature of the central object is revealed by the four diffraction spikes extending from it. These are artifacts due to structures within the telescope. The light from the star has also produced the annular halation ring (a photographic artefact) that ornaments the nebula. These features, real or otherwise, have provoked the name '

Nebula IC 2220 in the Carene - A mass - loss star in IC 2220 - This nebula is illuminated by a giant red star, the star HD 65670. Image obtained by Siding Spring's 3.9m telescope. The bright, supergiant star at the centre of this nebula is known only by its catalog designation, HD 65750. The nebulosity around the star is the result of light reflected by dust surrounding it. The dust is thought to consist mainly of particles of silica condensed from material which the star is losing from its distended surface at a fairly steady rate. The rate of mass loss is much higher than in normal stars and is sufficient to produce the reflection nebula IC 2220. The stellar nature of the central object is revealed by the four diffraction spikes extending from it. These are artifacts due to structures within the telescope. The light from the star has also produced the annular halation ring (a photographic artefact) that ornaments the nebula. These features, real or otherwise, have provoked the name '

PIX4622497

Exoplanete around Mira Ceti - Artist view - Mira Ceti seen from an exoplanet: The star Mira Ceti seen from the surface of an extrasolar planet - Mira is a binary star of the constellation of the Whale, consisting of a red giant, and a white dwarf - Mira Ceti is a binary stellar system, consisting of a variable red giant a white dwarf companion

Exoplanete around Mira Ceti - Artist view - Mira Ceti seen from an exoplanet: The star Mira Ceti seen from the surface of an extrasolar planet - Mira is a binary star of the constellation of the Whale, consisting of a red giant, and a white dwarf - Mira Ceti is a binary stellar system, consisting of a variable red giant a white dwarf companion

Miller, Ron (b.1947)

PIX4607535

Nebula IC 2220 in the Carene - The IC 2220, nebula, deep image - This nebula is illuminated by a large red star, the star HD 65670. Image obtained by Siding Spring's 3.9m telescope. Many stars lose a substantial part of their mass as they age. The more massive the star, the greater the fraction of their substance is lost. Much material is ejected by intense stellar winds driven from the surface of extremely hot stars and the mass loss is often only detectable in the stellar spectrum. In cooler stars temperatures may be low enough for elements or simple compounds to form solid grains in the star's outer atmosphere. This is seen as dust, and sometimes there is enough to reflect the light of the star within. As is often the case with stellar outflows, the IC 2220 reflection nebula is bipolar, hinting at conditions near the surface of the central star

Nebula IC 2220 in the Carene - The IC 2220, nebula, deep image - This nebula is illuminated by a large red star, the star HD 65670. Image obtained by Siding Spring's 3.9m telescope. Many stars lose a substantial part of their mass as they age. The more massive the star, the greater the fraction of their substance is lost. Much material is ejected by intense stellar winds driven from the surface of extremely hot stars and the mass loss is often only detectable in the stellar spectrum. In cooler stars temperatures may be low enough for elements or simple compounds to form solid grains in the star's outer atmosphere. This is seen as dust, and sometimes there is enough to reflect the light of the star within. As is often the case with stellar outflows, the IC 2220 reflection nebula is bipolar, hinting at conditions near the surface of the central star

PIX4622518

Artist's view of the star Zeta Piscium: The star Zeta Piscium seen in the sky of an exoplanet. This star is actually a binary star composed of a red giant and a white dwarf. Zeta Piscium is a binary star system consisting of a red giant and a white dwarf

Artist's view of the star Zeta Piscium: The star Zeta Piscium seen in the sky of an exoplanet. This star is actually a binary star composed of a red giant and a white dwarf. Zeta Piscium is a binary star system consisting of a red giant and a white dwarf

Miller, Ron (b.1947)

PIX4572723

Supernova 1993J exploding (artist's impression) - In 1993 the supernova SN 1993J appeared in the galaxy M81. The illustration shows the supergiant red star exploding after transferring a huge mass of hydrogen to its companion star (right). In this artist's view the red supergiant supernova progenitor star (left) is exploding after having transferred about 10 solar masses of hydrogen gas to the blue companion star (right). This interaction process happened over about 250 years and affected the supernova explosion to such an extent that SN 1993J was later known as one of the most peculiar supernovae ever seen

Supernova 1993J exploding (artist's impression) - In 1993 the supernova SN 1993J appeared in the galaxy M81. The illustration shows the supergiant red star exploding after transferring a huge mass of hydrogen to its companion star (right). In this artist's view the red supergiant supernova progenitor star (left) is exploding after having transferred about 10 solar masses of hydrogen gas to the blue companion star (right). This interaction process happened over about 250 years and affected the supernova explosion to such an extent that SN 1993J was later known as one of the most peculiar supernovae ever seen

PIX4583292

Open cluster NGC 4755 - Jewel Box - The Jewel Box cluster, NGC 4755 - NGC 4755 is located in the constellation of the Southern Cross at a distance of 7800 years - light from Earth. The bright orange star is Kappa Crucis, a supergiant red star. This famous group of young bright stars is an open cluster some 7800 light years from the Sun. It was named the Jewel Box from its description by Sir John Herschel as 'a casket of variously coloured precious stones', which refers to its appearance in the telescope. The bright orange star is kappa Crucis, and it contrasts strongly against its predominantly blue, hot companions. Kappa Cru is a very large, (hence very luminous) quite young star in its red supergiant stage, which paradoxically indicates that its life is drawing to a close. The cluster is looks like a star to the unaided eye and appears close to the eastern - most star of the Southern Cross, so is only visible from southern latitude

Open cluster NGC 4755 - Jewel Box - The Jewel Box cluster, NGC 4755 - NGC 4755 is located in the constellation of the Southern Cross at a distance of 7800 years - light from Earth. The bright orange star is Kappa Crucis, a supergiant red star. This famous group of young bright stars is an open cluster some 7800 light years from the Sun. It was named the Jewel Box from its description by Sir John Herschel as 'a casket of variously coloured precious stones', which refers to its appearance in the telescope. The bright orange star is kappa Crucis, and it contrasts strongly against its predominantly blue, hot companions. Kappa Cru is a very large, (hence very luminous) quite young star in its red supergiant stage, which paradoxically indicates that its life is drawing to a close. The cluster is looks like a star to the unaided eye and appears close to the eastern - most star of the Southern Cross, so is only visible from southern latitude

PIX4568295

Nebula IC 2220 in the Carene - The IC 2220 nebula - This reflexion nebula is illuminated by a giant red star, the star HD 65670. IC2220 is a type of reflection nebula formed as a result of mass loss from its parent star, the red giant HD 65750. The yellowish red light is the reflected 1ight of this parent star. The bipolar nebula (the mass of 1/100 that of our sun) was produced in an earlier phase of intense mass loss during the “” giant”” phase of this evolving star

Nebula IC 2220 in the Carene - The IC 2220 nebula - This reflexion nebula is illuminated by a giant red star, the star HD 65670. IC2220 is a type of reflection nebula formed as a result of mass loss from its parent star, the red giant HD 65750. The yellowish red light is the reflected 1ight of this parent star. The bipolar nebula (the mass of 1/100 that of our sun) was produced in an earlier phase of intense mass loss during the “” giant”” phase of this evolving star

R. Gendler

PIX4622508

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

Comparison of Sun, Sirius and Red Giant Sizes - Size comparison: Sun Sirius and red giant

Comparison of Sun, Sirius and Red Giant Sizes - Size comparison: Sun Sirius and red giant

Miller, Ron (b.1947)

PIX4573081

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but depending on their masses, they will follow different destinies. Stars are all born in interstellar clouds but according to their mass, they will follow different destinies

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but depending on their masses, they will follow different destinies. Stars are all born in interstellar clouds but according to their mass, they will follow different destinies

P. Carril

PIX4573028

Double star Gliese 623 - Double star system Gliese 623 in Hercules - Gliese 623 is a double star located about 25 years ago - light in the constellation Hercules. The Hubble space telescope was able for the first time to obtain an image of the two stars that make up this system, in June 1994. The two stars are separated by about twice the distance from Earth to Sun. On the right, 623b, a star 60,000 times less bright than the Sun, and 10 times less massive. Its nature is misidentified, it's a red dwarf or a brown dwarf. A dim double star system cataloged as Gliese 623 lies 25 light - years from Earth, in the constellation of Hercules. The individual stars of this binary system were distinguished for the first time when the Hubble Space Telescope's Faint Object Camera recorded this image in June 1994. They are separated by 200 million miles - about twice the Earth/Sun distance. On the right, the fainter Gliese 623b is 60,000 times less luminous than the Sun and approximately 10 times le

Double star Gliese 623 - Double star system Gliese 623 in Hercules - Gliese 623 is a double star located about 25 years ago - light in the constellation Hercules. The Hubble space telescope was able for the first time to obtain an image of the two stars that make up this system, in June 1994. The two stars are separated by about twice the distance from Earth to Sun. On the right, 623b, a star 60,000 times less bright than the Sun, and 10 times less massive. Its nature is misidentified, it's a red dwarf or a brown dwarf. A dim double star system cataloged as Gliese 623 lies 25 light - years from Earth, in the constellation of Hercules. The individual stars of this binary system were distinguished for the first time when the Hubble Space Telescope's Faint Object Camera recorded this image in June 1994. They are separated by 200 million miles - about twice the Earth/Sun distance. On the right, the fainter Gliese 623b is 60,000 times less luminous than the Sun and approximately 10 times le

PIX4572158

Globular cluster M15 in Pegase - Globular cluster M15 in Pegasus - View of the globular cluster M15 by the Hubble space telescope. Located about 35,000 light years away from Earth in the constellation Pegase, M15 is one of 150 known globular clusters forming a vast halo around our galaxy. The bluish object in the middle left of the image is a planetary nebula: Kuestner 648 (Pease 1). Planetary nebulae are gas shells ejected by a star at the end of life, after its phase of red giante; they are very rarely observed in globular clusters or their presence is not yet well understood. The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope. Lying some 35,000 light - years from Earth in the direction of the constellation Pegasus, M15 is one of almost 150 known globular clusters that form a vast halo surrounding our Milky Way galaxy. The bluish object to the middle left of the image is a gas cloud surrounding a dying star, a planetary nebula k

Globular cluster M15 in Pegase - Globular cluster M15 in Pegasus - View of the globular cluster M15 by the Hubble space telescope. Located about 35,000 light years away from Earth in the constellation Pegase, M15 is one of 150 known globular clusters forming a vast halo around our galaxy. The bluish object in the middle left of the image is a planetary nebula: Kuestner 648 (Pease 1). Planetary nebulae are gas shells ejected by a star at the end of life, after its phase of red giante; they are very rarely observed in globular clusters or their presence is not yet well understood. The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope. Lying some 35,000 light - years from Earth in the direction of the constellation Pegasus, M15 is one of almost 150 known globular clusters that form a vast halo surrounding our Milky Way galaxy. The bluish object to the middle left of the image is a gas cloud surrounding a dying star, a planetary nebula k

PIX4565141

Globular cluster 47 Toucan - Globular cluster 47 Tucanae - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 16000 years ago - light it contains several million stars, some of which are among the older stars known today. This image was obtained by the Kueyen telescope of the VLT in Chile in 2001. It shows the central part of the cluster. 47 Tucanae is an impressive globular cluster that is visible with the unaided eye from the southern hemisphere. Located about 16,000 light years away, it has a total mass of about 1 million times the mass of the Sun and is 120 light years across, making it appear on the sky as big as the full moon. The colour image of 47 Tucanae shown here was taken with FORS1 on Eso's Very Large Telescope in 2001. The image covers only the densest, very central part of the cluster. The globular cluster extends in reality four times further away

Globular cluster 47 Toucan - Globular cluster 47 Tucanae - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 16000 years ago - light it contains several million stars, some of which are among the older stars known today. This image was obtained by the Kueyen telescope of the VLT in Chile in 2001. It shows the central part of the cluster. 47 Tucanae is an impressive globular cluster that is visible with the unaided eye from the southern hemisphere. Located about 16,000 light years away, it has a total mass of about 1 million times the mass of the Sun and is 120 light years across, making it appear on the sky as big as the full moon. The colour image of 47 Tucanae shown here was taken with FORS1 on Eso's Very Large Telescope in 2001. The image covers only the densest, very central part of the cluster. The globular cluster extends in reality four times further away

PIX4564275

Constellation of Taurus - Constellation of Taurus - Taurus, (the Bull) is one of the most ancient constellations, and appears in artefacts as old as western civilisation itself. The bull is still a figure of strength and fertility in cultures around the world. In the sky the distinctive 'V' shape of his head and long horns tipped by beta (ss) and zeta Tau is easily recognised. If the purpose of the horns was in doubt, the English name for ss Tau is Alnath, meaning 'the butting one'. The bull's glowing red eye of Aldebaran completes the picture, and its location between the delicate Pleiades and the aggressive stance of Orion makes Taurus hard to overlook. Despite its masculine connotations, the constellation is rich in female icons; both the Hyades and Pleiades star clusters are daughters of Atlas and both are important astronomically. The Pleiades (or the Seven Sisters) are a group of young stars at a distance of about 440 light years and on long exposure photographs are seen to be em

Constellation of Taurus - Constellation of Taurus - Taurus, (the Bull) is one of the most ancient constellations, and appears in artefacts as old as western civilisation itself. The bull is still a figure of strength and fertility in cultures around the world. In the sky the distinctive 'V' shape of his head and long horns tipped by beta (ss) and zeta Tau is easily recognised. If the purpose of the horns was in doubt, the English name for ss Tau is Alnath, meaning 'the butting one'. The bull's glowing red eye of Aldebaran completes the picture, and its location between the delicate Pleiades and the aggressive stance of Orion makes Taurus hard to overlook. Despite its masculine connotations, the constellation is rich in female icons; both the Hyades and Pleiades star clusters are daughters of Atlas and both are important astronomically. The Pleiades (or the Seven Sisters) are a group of young stars at a distance of about 440 light years and on long exposure photographs are seen to be em

PIX4594065

Star cluster in the nebula NGC 3603 - Star cluster in NGC 3603 nebula - Cluster of young stars in the nebula NGC 3603, located about 20,000 years ago - light from Earth in the southern constellation of Carene. Image obtained by the Hubble Space Telescope in August and December 2009. NGC 3603 is a prominent star - forming region located in the Carina spiral arm of the Milky Way, about 20,000 light - years away from our Solar System. This image from the NASA/ESA Hubble Space Telescope shows a young star cluster surrounded by a vast region of dust and gas. Most of the bright stars in the image are hot blue stars whose ultraviolet radiation and violent winds have blown out an enormous cavity in the gas and dust enveloping the cluster. This Hubble Space Telescope image was captured in August 2009 and December 2009 with the Wide Field Camera 3 in both visible and infrared light, which trace the glow of sulfur, hydrogen, and iron

Star cluster in the nebula NGC 3603 - Star cluster in NGC 3603 nebula - Cluster of young stars in the nebula NGC 3603, located about 20,000 years ago - light from Earth in the southern constellation of Carene. Image obtained by the Hubble Space Telescope in August and December 2009. NGC 3603 is a prominent star - forming region located in the Carina spiral arm of the Milky Way, about 20,000 light - years away from our Solar System. This image from the NASA/ESA Hubble Space Telescope shows a young star cluster surrounded by a vast region of dust and gas. Most of the bright stars in the image are hot blue stars whose ultraviolet radiation and violent winds have blown out an enormous cavity in the gas and dust enveloping the cluster. This Hubble Space Telescope image was captured in August 2009 and December 2009 with the Wide Field Camera 3 in both visible and infrared light, which trace the glow of sulfur, hydrogen, and iron

PIX4619158

Detail of the globular cluster 47 Toucan - Starfield in 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 older stars known today. This image obtained by the Hubble Space Telescope shows a detail of this cluster near its center; about 35,000 stars are visible. This image shows the Hubble telescope's close - up look at a swarm of 35, 000 stars near the club's central region. The stars are tightly packed together: They are much closer together than our Sun and its closest stars. The picture, taken by the Wide Field and Planetary Camera 2, depicts the stars' natural colors and tells scientists about their composition and age. For example, the red stars denote bright red giants nearing the end of their lives; the more common yellow stars are similar to our middle - aged Sun

Detail of the globular cluster 47 Toucan - Starfield in 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 older stars known today. This image obtained by the Hubble Space Telescope shows a detail of this cluster near its center; about 35,000 stars are visible. This image shows the Hubble telescope's close - up look at a swarm of 35, 000 stars near the club's central region. The stars are tightly packed together: They are much closer together than our Sun and its closest stars. The picture, taken by the Wide Field and Planetary Camera 2, depicts the stars' natural colors and tells scientists about their composition and age. For example, the red stars denote bright red giants nearing the end of their lives; the more common yellow stars are similar to our middle - aged Sun

PIX4564266

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

PIX4564310

Constellation of Taurus - Constellation of Taurus - On the right of the image, nebula NGC 1499, on the top, nebulae IC 1805 and IC 1848

Constellation of Taurus - Constellation of Taurus - On the right of the image, nebula NGC 1499, on the top, nebulae IC 1805 and IC 1848

B&S.Fletcher

PIX4594054

Exoplanets around a red dwarf star - Exoplanets around a red dwarf star - Artist's view of extrasolar planets orbiting a red dwarf star. This artist's concept illustrates a young, red dwarf star surrounded by three planets. Such stars are dimmer and smaller than yellow stars like our sun, which makes them ideal targets for astronomers wishing to take images of planets outside our solar system, called exoplanets

Exoplanets around a red dwarf star - Exoplanets around a red dwarf star - Artist's view of extrasolar planets orbiting a red dwarf star. This artist's concept illustrates a young, red dwarf star surrounded by three planets. Such stars are dimmer and smaller than yellow stars like our sun, which makes them ideal targets for astronomers wishing to take images of planets outside our solar system, called exoplanets

PIX4573338

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

Planetary Nebula of the Red Rectangle in the Unicorn - The Red Rectangle, AFGL 915 - This planetary nebula is located about 2300 years ago - light. Image from Siding Spring 3.9m Telescope This surprising object is one of an unusual class of nebulae surrounding mature, sun - like stars that are about to turn into planetary nebulae. Not all pre - planetary nebulae have outbursts like this, and in those that do, the nebula lasts only a few thousand years, hence the rarity. The central star has a thick belt of dust like a girdle around its equator which restricts outflow in that direction. Instead, the star ejects material in a kind of cone from each of its poles. The spectrum of the nebula shows unusual, strong red lines from hydrogen bonded to grains of carbon, however there is sufficient light reflected from the embedded star to dilute the strong red spectrum to the deep yellow we see here

Planetary Nebula of the Red Rectangle in the Unicorn - The Red Rectangle, AFGL 915 - This planetary nebula is located about 2300 years ago - light. Image from Siding Spring 3.9m Telescope This surprising object is one of an unusual class of nebulae surrounding mature, sun - like stars that are about to turn into planetary nebulae. Not all pre - planetary nebulae have outbursts like this, and in those that do, the nebula lasts only a few thousand years, hence the rarity. The central star has a thick belt of dust like a girdle around its equator which restricts outflow in that direction. Instead, the star ejects material in a kind of cone from each of its poles. The spectrum of the nebula shows unusual, strong red lines from hydrogen bonded to grains of carbon, however there is sufficient light reflected from the embedded star to dilute the strong red spectrum to the deep yellow we see here

PIX4623779

The End of the Earth - Artist's View - Earth's end - Artist view: Artist view of the Earth during the flash of the helium, the moment when the sun turned red-like sun blows its outer layers to become a planetary nebula. A helium flash strips the sun of its remaining outer atmosphere, further devastating the earth.

The End of the Earth - Artist's View - Earth's end - Artist view: Artist view of the Earth during the flash of the helium, the moment when the sun turned red-like sun blows its outer layers to become a planetary nebula. A helium flash strips the sun of its remaining outer atmosphere, further devastating the earth.

Miller, Ron (b.1947)

PIX4669634

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but depending on their masses, they will follow different destinies. Stars are all born in interstellar clouds but according to their mass, they will follow different destinies

The evolution of stars - Illustration - The evolution of the stars - Illustration - All stars are born in interstellar clouds but depending on their masses, they will follow different destinies. Stars are all born in interstellar clouds but according to their mass, they will follow different destinies

P. Carril

PIX4573031

U Geminorum in the sky of an exoplanet - U Geminorum seen from an exoplanet. Artwork - U Geminorum is a dwarf nova, a variable star composed of a white dwarf orbiting around a red dwarf. This binary greenhouse system is represented here in the sky of an extrasolar planet. Artwork showing U Geminorum in the sky of an exoplanet. U Geminorum, in the constellation Gemini, is an archetypal example of a dwarf nova. The binary star system consists of a white dwarf closely orbiting a red dwarf

U Geminorum in the sky of an exoplanet - U Geminorum seen from an exoplanet. Artwork - U Geminorum is a dwarf nova, a variable star composed of a white dwarf orbiting around a red dwarf. This binary greenhouse system is represented here in the sky of an extrasolar planet. Artwork showing U Geminorum in the sky of an exoplanet. U Geminorum, in the constellation Gemini, is an archetypal example of a dwarf nova. The binary star system consists of a white dwarf closely orbiting a red dwarf

Miller, Ron (b.1947)

PIX4574280

Brown dwarf star Gliese 229b: Artist's view of the brown dwarf star Gliese 229 B seen from a possible satellite. Discovered in 1995 in the constellation Lievre at 18 light years from Earth, this brown dwarf is 30 to 40 times more massive than Jupiter and would be 2 to 4 billion years old. Top left is the red dwarf star Gliese 229A. This is how the brown dwarf Gliese 229b might appear from a satellite. Gliese 229 b was discovered in 1995 and is 19 light years from the Earth. This brown dwarf orbits the red dwarf Gliese 229A in the constellation Lepus. Gliese A can be seen shining dimly on the upper left. These two dwarfs are about four billion miles apart, about the same distance between Pluto and our sun

Brown dwarf star Gliese 229b: Artist's view of the brown dwarf star Gliese 229 B seen from a possible satellite. Discovered in 1995 in the constellation Lievre at 18 light years from Earth, this brown dwarf is 30 to 40 times more massive than Jupiter and would be 2 to 4 billion years old. Top left is the red dwarf star Gliese 229A. This is how the brown dwarf Gliese 229b might appear from a satellite. Gliese 229 b was discovered in 1995 and is 19 light years from the Earth. This brown dwarf orbits the red dwarf Gliese 229A in the constellation Lepus. Gliese A can be seen shining dimly on the upper left. These two dwarfs are about four billion miles apart, about the same distance between Pluto and our sun

Miller, Ron (b.1947)

PIX4607542

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 older stars known today. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies

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 older stars known today. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies

D. De Martin

PIX4564299

Constellations of Orion and Great Dog - Constellations of Canis Major and Orion - On the left the constellation of the Great Dog with the star Sirius, on the right, the constellation Orion. A shooting star is visible at the top left

Constellations of Orion and Great Dog - Constellations of Canis Major and Orion - On the left the constellation of the Great Dog with the star Sirius, on the right, the constellation Orion. A shooting star is visible at the top left

B&S.Fletcher

PIX4590776

La fin de la terre - Vue d'artiste - Earth's end - Artist view: Viewed by artist from the Earth in several billions of years. The Sun, becoming a red giant, will make life impossible on Earth. As a red giant, the sun begins to melt the earth's surface.

La fin de la terre - Vue d'artiste - Earth's end - Artist view: Viewed by artist from the Earth in several billions of years. The Sun, becoming a red giant, will make life impossible on Earth. As a red giant, the sun begins to melt the earth's surface.

Miller, Ron (b.1947)

PIX4669628

Artist's view of a red dwarf star in the sky of an exoplanet - A red dwarf seen from an exoplanet. Artwork - Artist's view of an exoplanet covered in ice with its red dwarf star too cold to heat it up. Artwork showing an icy exoplanet, with its star, a red dwarf, too cold to heat the planet surface

Artist's view of a red dwarf star in the sky of an exoplanet - A red dwarf seen from an exoplanet. Artwork - Artist's view of an exoplanet covered in ice with its red dwarf star too cold to heat it up. Artwork showing an icy exoplanet, with its star, a red dwarf, too cold to heat the planet surface

Miller, Ron (b.1947)

PIX4572483

Antares star and the Rho Ophiuchi nebula - This coloree nebula represents the visible part of a very large molecule cloud, the Ophiuchus cloud. This star-forming region is located about 520 light years away. The brightest star below is the star Antares, from the Scorpio. On the right, the M4 star cluster. View of the region surrounding the bright triple star Rho Ophiuchus (in the blue cloud). This star-forming region is located at about 520 light years in Scorpius constellation. The area is highlighted by the bright star Antares (bottom), a red supergiant 40,000 times more luminous than our sun

Antares star and the Rho Ophiuchi nebula - This coloree nebula represents the visible part of a very large molecule cloud, the Ophiuchus cloud. This star-forming region is located about 520 light years away. The brightest star below is the star Antares, from the Scorpio. On the right, the M4 star cluster. View of the region surrounding the bright triple star Rho Ophiuchus (in the blue cloud). This star-forming region is located at about 520 light years in Scorpius constellation. The area is highlighted by the bright star Antares (bottom), a red supergiant 40,000 times more luminous than our sun

Alex Conu

PIX4580154

The smallest stars - Artist's view - The smallest stars. Artwork - Comparison to the scale of the smallest stars with Jupiter and the Sun. From left to right: Jupiter, a brown dwarf (same size as Jupiter but 50 times more massive), dwarf L (younger brown dwarf), red dwarf, Sun. From left to right: Jupiter (a failed star), a brown dwarf (same size as Jupiter but 50 times more massive), a “” L”” dwarf (brown dwarf younger), a red dwarf and the sun for comparison

The smallest stars - Artist's view - The smallest stars. Artwork - Comparison to the scale of the smallest stars with Jupiter and the Sun. From left to right: Jupiter, a brown dwarf (same size as Jupiter but 50 times more massive), dwarf L (younger brown dwarf), red dwarf, Sun. From left to right: Jupiter (a failed star), a brown dwarf (same size as Jupiter but 50 times more massive), a “” L”” dwarf (brown dwarf younger), a red dwarf and the sun for comparison

L. Bret

PIX4572490

Constellation Orion - Constellation of Orio

Constellation Orion - Constellation of Orio

Jerry Lodriguss

PIX4592402

Exoplanete GJ 1214 b - Exoplanet GJ 1214 b - Illustration showing the transit of the extrasolar planet GJ 1214 b in front of its star, the red dwarf GJ 1214, in the constellation Ophiuchus. GJ 1214 b is a super Earth, six times the mass of the Earth, which has an atmosphere but is too inhospitable to shelter life as we know it. This artist's impression shows how the super - Earth surrounding the nearby star GJ1214 may look. Discovered by the Mearth project and investigated further by the HARPS spectrograph on ESO's 3.6 - metre telescope at La Silla, GJ1214b is the second super - Earth exoplanet for which astronomers have determined the mass and radius, giving vital clues about its structure. It is also the first super - Earth around which an atmosphere has been found. The exoplanet, orbiting a small star only 40 light - years away from us, thus opens dramatic new perspectives in the quest for habitable worlds. The planet, GJ1214b, has a mass about six times that of Earth and its interi

Exoplanete GJ 1214 b - Exoplanet GJ 1214 b - Illustration showing the transit of the extrasolar planet GJ 1214 b in front of its star, the red dwarf GJ 1214, in the constellation Ophiuchus. GJ 1214 b is a super Earth, six times the mass of the Earth, which has an atmosphere but is too inhospitable to shelter life as we know it. This artist's impression shows how the super - Earth surrounding the nearby star GJ1214 may look. Discovered by the Mearth project and investigated further by the HARPS spectrograph on ESO's 3.6 - metre telescope at La Silla, GJ1214b is the second super - Earth exoplanet for which astronomers have determined the mass and radius, giving vital clues about its structure. It is also the first super - Earth around which an atmosphere has been found. The exoplanet, orbiting a small star only 40 light - years away from us, thus opens dramatic new perspectives in the quest for habitable worlds. The planet, GJ1214b, has a mass about six times that of Earth and its interi

PIX4573892

Constellations of the Great Dog, Orion and Hyad Cluster - Constellations Canis Major, Orion and the Hyades cluster - Winter Constellations. On the left the constellation of the Great Dog with the star Sirius, in the center the constellation of Orion, on the right the cluster of the Hyades. Winter constellations, from left to right: Canis Major with Sirius star, the constellation Orion and the Hyades cluster

Constellations of the Great Dog, Orion and Hyad Cluster - Constellations Canis Major, Orion and the Hyades cluster - Winter Constellations. On the left the constellation of the Great Dog with the star Sirius, in the center the constellation of Orion, on the right the cluster of the Hyades. Winter constellations, from left to right: Canis Major with Sirius star, the constellation Orion and the Hyades cluster

S. Numazawa

PIX4590807

The End of the Earth - Artist's View - Earth's end - Artist view: Artist view of the Earth in 4 billion years. The Sun, becoming a red giant, will make life impossible on Earth. As a red giant, the sun begins to melt the earth's surface

The End of the Earth - Artist's View - Earth's end - Artist view: Artist view of the Earth in 4 billion years. The Sun, becoming a red giant, will make life impossible on Earth. As a red giant, the sun begins to melt the earth's surface

Miller, Ron (b.1947)

PIX4669615

Planetary system around Trappist-1 - Artist's impressions of the TRAPPIST-1 planetary system: Artist's view of extrasolar planets around the red dwarf star TRAPPIST-1. At least seven exoplanets the size of the Earth are orbiting this star 40 light years ago in the constellation Aquarius. All could contain water. This artist's impression shows several of the planets orbiting the ultra-cool red dwarf star TRAPPIST-1. New observations, when combined with very sophisticated analysis, have now yielded good estimates of the densities of all seven of the Earth-sized planets and suggest that they are rich in volatile materials, probably water

Planetary system around Trappist-1 - Artist's impressions of the TRAPPIST-1 planetary system: Artist's view of extrasolar planets around the red dwarf star TRAPPIST-1. At least seven exoplanets the size of the Earth are orbiting this star 40 light years ago in the constellation Aquarius. All could contain water. This artist's impression shows several of the planets orbiting the ultra-cool red dwarf star TRAPPIST-1. New observations, when combined with very sophisticated analysis, have now yielded good estimates of the densities of all seven of the Earth-sized planets and suggest that they are rich in volatile materials, probably water

PIX4608398

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 Spitzer space telescope reveals in yellow and red the big red stars, whose dust radiates infrared, and in blue the smaller and less evoluted stars. Omega Centauri is the biggest and brightest of the more than 150 similar objects, called globular clusters, that orbit around the outside of our Milky Way galaxy. Stargazers at southern latitudes can spot the stellar gem with the naked eye in the constellation Centaurus. While the visible - light observations highlight the cluster's millions of jam - packed stars, Spitzer's infrared eyes reveal the dustier, more evolved stars tossed throughout the region. Globular clusters are some of the oldest objects in our universe. The

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 Spitzer space telescope reveals in yellow and red the big red stars, whose dust radiates infrared, and in blue the smaller and less evoluted stars. Omega Centauri is the biggest and brightest of the more than 150 similar objects, called globular clusters, that orbit around the outside of our Milky Way galaxy. Stargazers at southern latitudes can spot the stellar gem with the naked eye in the constellation Centaurus. While the visible - light observations highlight the cluster's millions of jam - packed stars, Spitzer's infrared eyes reveal the dustier, more evolved stars tossed throughout the region. Globular clusters are some of the oldest objects in our universe. The

PIX4564424

Constellation Scorpio - Constellation of Scorpiu

Constellation Scorpio - Constellation of Scorpiu

B&S.Fletcher

PIX4593698

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