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Bilder zu 'Binärstern' gefunden, 60

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Artist's view of a double star - Binary star - Artist's view of a system of two stars orbiting their common centre of gravite. Artwork of a binary star, a stellar system of two stars orbiting around their common center of mass

Artist's view of a double star - Binary star - Artist's view of a system of two stars orbiting their common centre of gravite. Artwork of a binary star, a stellar system of two stars orbiting around their common center of mass

D. Ducros

PIX4572675

Artist's view of a binary star - Binary star - Artist's view of a system of two stars orbiting their common center of gravite. Artwork of a binary star, a stellar system of two stars orbiting around their common center of mass

Artist's view of a binary star - Binary star - Artist's view of a system of two stars orbiting their common center of gravite. Artwork of a binary star, a stellar system of two stars orbiting around their common center of mass

H. Piraud

PIX4572631

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

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

S. Numazawa

PIX4572606

Hypergeante Star HR 5171 - Illustration: This artist view shows the yellow hypergeant star HR 5171. It is a very rare star of which only a dozen people our galaxy. Its dimensions are more than 1300 times greater than those of the Sun, making it one of the ten largest stars discovered to date. Observations have shown that it is actually a double star, whose companion is in direct contact with the main star. This artist's impression shows the yellow hypergiant star HR 5171. This is a very rare type of star with only a dozen known in our galaxy. Its size is over 1300 times that of our Sun - one of the largest ten stars found so far. Observations with Eso's Very Large Telescope Interferometer have shown that it is actually a double star, with the companion in contact with the main star

Hypergeante Star HR 5171 - Illustration: This artist view shows the yellow hypergeant star HR 5171. It is a very rare star of which only a dozen people our galaxy. Its dimensions are more than 1300 times greater than those of the Sun, making it one of the ten largest stars discovered to date. Observations have shown that it is actually a double star, whose companion is in direct contact with the main star. This artist's impression shows the yellow hypergiant star HR 5171. This is a very rare type of star with only a dozen known in our galaxy. Its size is over 1300 times that of our Sun - one of the largest ten stars found so far. Observations with Eso's Very Large Telescope Interferometer have shown that it is actually a double star, with the companion in contact with the main star

PIX4572123

Exoplanete around a binary star - Artist view - Binary Star Exoplanet - Artist rendering

Exoplanete around a binary star - Artist view - Binary Star Exoplanet - Artist rendering

Miller, Ron (b.1947)

PIX4607698

Artist's view of a pulsar and its companion star - A pulsar and its companion - A pulsar is a neutron star endowed with a magnetic field that rotates on it - even extremely quickly and emits beams of light and radio waves. A pulsar is a neutron star, highly magnetized, rotating very quickly which emits a beam of detectable radiation in the form of radio waves

Artist's view of a pulsar and its companion star - A pulsar and its companion - A pulsar is a neutron star endowed with a magnetic field that rotates on it - even extremely quickly and emits beams of light and radio waves. A pulsar is a neutron star, highly magnetized, rotating very quickly which emits a beam of detectable radiation in the form of radio waves

S. Numazawa

PIX4572784

White dwarf and Neutron star: Artist's view of a neutron star that accumulates material from a white dwarf (right) in an accretion disc. Illustration of a neutron star in a binary system accumulating matter from its white dwarf companion in an accretion disk

White dwarf and Neutron star: Artist's view of a neutron star that accumulates material from a white dwarf (right) in an accretion disc. Illustration of a neutron star in a binary system accumulating matter from its white dwarf companion in an accretion disk

Miller, Ron (b.1947)

PIX4572790

Exoplanets around Kepler-47 - Artist's impression of the Kepler-47 system: Kepler-47 c is a giant gas extrasolar planet located in the habitable area of its binary star Kepler-47. Kepler-47 c is a gas giant that orbits the two stars in the habitable zone of Kepler-47 system

Exoplanets around Kepler-47 - Artist's impression of the Kepler-47 system: Kepler-47 c is a giant gas extrasolar planet located in the habitable area of its binary star Kepler-47. Kepler-47 c is a gas giant that orbits the two stars in the habitable zone of Kepler-47 system

PIX4574140

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves cannot be detected directly by astronomers on Earth they can be detected indirectly by measuring the change in the orbit of the system as it loses energy. As the p

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves cannot be detected directly by astronomers on Earth they can be detected indirectly by measuring the change in the orbit of the system as it loses energy. As the p

PIX4572892

Binary pulsar and gravitational waves - Binary pulsar and gravitational waves - Artist's view of a gravitational wave generated by a system of two stars a neutron, spreading over the fabric of space - time

Binary pulsar and gravitational waves - Binary pulsar and gravitational waves - Artist's view of a gravitational wave generated by a system of two stars a neutron, spreading over the fabric of space - time

L. Bret

PIX4572860

Artist's view of a dwarf nova - Dwarf 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 dwarf nova is characterised by smaller eruptions

Artist's view of a dwarf nova - Dwarf 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 dwarf nova is characterised by smaller eruptions

S. Numazawa

PIX4572580

Exoplanete Kepler-16 b seen from one of its satellites: Kepler-16 b is an extrasolar planet (exoplanete) orbiting in the habitable area of the Starsystem Kepler-16 (AB), an Algol-type binary star located at a distance of about 200 light years from the Sun in the constellation of Swan. Kepler-16b is a saturn-mass extrasolar planet orbiting a binary star, Kepler-16

Exoplanete Kepler-16 b seen from one of its satellites: Kepler-16 b is an extrasolar planet (exoplanete) orbiting in the habitable area of the Starsystem Kepler-16 (AB), an Algol-type binary star located at a distance of about 200 light years from the Sun in the constellation of Swan. Kepler-16b is a saturn-mass extrasolar planet orbiting a binary star, Kepler-16

Miller, Ron (b.1947)

PIX4608161

Exoplanete Kepler-64 b: Kepler-64 b or PH1 b (Planet Hunters 1b), is a circumbinary extrasolar planet belonging to the Quadruple Star System Kepler-64 (PH1). PH1b would be a giant gas planet. pH1b (standing for “” Planet Hunters 1””), or by its NASA designation Kepler-64b, is an extrasolar planet found in a circumbinary orbit in the quadruple star system Kepler-64. The giant planet is Neptune-sized, about 20-55 Earth-masses, located 5000 light years from Earth in Cygnus constellation

Exoplanete Kepler-64 b: Kepler-64 b or PH1 b (Planet Hunters 1b), is a circumbinary extrasolar planet belonging to the Quadruple Star System Kepler-64 (PH1). PH1b would be a giant gas planet. pH1b (standing for “” Planet Hunters 1””), or by its NASA designation Kepler-64b, is an extrasolar planet found in a circumbinary orbit in the quadruple star system Kepler-64. The giant planet is Neptune-sized, about 20-55 Earth-masses, located 5000 light years from Earth in Cygnus constellation

Miller, Ron (b.1947)

PIX4608219

Exoplanete OGLE-2013-BLG-0341L Bb - Artist's view: OGLE-2013-BLG-0341L Bb is an exoplanet about twice the mass of the Earth gravitating around the red dwarf OGLE-2013-BLG-0341L B, a secondary component of the binary star OGLE-2013-BLG-0341L located in the constellation. OGLE-2013-BLG-0341LBB, is located in the constellation Sagittarius, about 3,000 light-years away. It is twice the mass of Earth, and orbits one of the stars in the binary system at almost exactly the same distance from which Earth orbits the Sun. But its star is 400 times dimmer than our Sun, so the exoplanet is very cold - around minus 213 degrees Celsius

Exoplanete OGLE-2013-BLG-0341L Bb - Artist's view: OGLE-2013-BLG-0341L Bb is an exoplanet about twice the mass of the Earth gravitating around the red dwarf OGLE-2013-BLG-0341L B, a secondary component of the binary star OGLE-2013-BLG-0341L located in the constellation. OGLE-2013-BLG-0341LBB, is located in the constellation Sagittarius, about 3,000 light-years away. It is twice the mass of Earth, and orbits one of the stars in the binary system at almost exactly the same distance from which Earth orbits the Sun. But its star is 400 times dimmer than our Sun, so the exoplanet is very cold - around minus 213 degrees Celsius

Miller, Ron (b.1947)

PIX4608038

Star Sirius in the Great Dog - Sirius in Canis Major - Sirius is the main star in the constellation Big Dog. Seen from the Earth, Sirius is the brightest star in the sky after the Sun. Sirius, the Dog Star, is the brightest star in the night sky at mag - 1.44 and it dominates the constellation of Canis Major. Sirius is a binary star with a white dwarf companion named Sirius B, “” The Pup”. It is an eight - magnitude star that is separated from Sirius by only a couple of arc seconds making it difficult to observe in a telescope because of the primary's great brilliance

Star Sirius in the Great Dog - Sirius in Canis Major - Sirius is the main star in the constellation Big Dog. Seen from the Earth, Sirius is the brightest star in the sky after the Sun. Sirius, the Dog Star, is the brightest star in the night sky at mag - 1.44 and it dominates the constellation of Canis Major. Sirius is a binary star with a white dwarf companion named Sirius B, “” The Pup”. It is an eight - magnitude star that is separated from Sirius by only a couple of arc seconds making it difficult to observe in a telescope because of the primary's great brilliance

Jerry Lodriguss

PIX4571719

Artist's view of Beta Lyrae - Beta Lyrae artwork - Artist's view of Beta Lyrae (Sheliak), an eclipse binary star located in the constellation of Lyra. Beta Lyrae (Sheliak) is a binary star located in the constellation of Lyra

Artist's view of Beta Lyrae - Beta Lyrae artwork - Artist's view of Beta Lyrae (Sheliak), an eclipse binary star located in the constellation of Lyra. Beta Lyrae (Sheliak) is a binary star located in the constellation of Lyra

S. Numazawa

PIX4572568

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of

Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of

PIX4572795

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

Colliding neutron stars and gravitational waves - Colliding neutron stars and gravitational waves: Artist's view of a gravitational wave generated by a system of two neutron stars in collision, spreading over the space-time fabric. Artist's impression of two neutron stars - the compact remnants of what were once massive stars - spiralling towards each other just before merging. The collision of these dense, compact objects produced gravitational waves - fluctuations in the fabric of spacetime - that were detected by the LIGO/Virgo collaboration on 17 August 2017. A couple of seconds after that, ESA's Integral and Nasa's Fermi satellites detected a burst of gamma rays, the luminous counterpart to the gravitational waves emitted by the cosmic clash. This is the first discovery of gravitational waves and light coming from the same source

Colliding neutron stars and gravitational waves - Colliding neutron stars and gravitational waves: Artist's view of a gravitational wave generated by a system of two neutron stars in collision, spreading over the space-time fabric. Artist's impression of two neutron stars - the compact remnants of what were once massive stars - spiralling towards each other just before merging. The collision of these dense, compact objects produced gravitational waves - fluctuations in the fabric of spacetime - that were detected by the LIGO/Virgo collaboration on 17 August 2017. A couple of seconds after that, ESA's Integral and Nasa's Fermi satellites detected a burst of gamma rays, the luminous counterpart to the gravitational waves emitted by the cosmic clash. This is the first discovery of gravitational waves and light coming from the same source

PIX4607575

Planetary nebula NGC 2346 in Unicorn - The planetary nebula NGC 2346 - This nebula is located about 2000 years - light from Earth. A binary star resides in its center. Image obtained by the 3.9m telescope of Siding Spring NGC 2346 is a fine bipolar planetary nebula which is on the celestial equator in the constellation of Monoceros. It is bright and conspicuous and has been extensively studied. Among its most remarkable characteristics is its unusually cool central star, which is a 'spectroscopic binary'. The two components are identified by the effect of their movement around each other on the lines of their spectrum. The double star, which has a period of about 16 days, is also variable, probably due to dust in orbit around it. The dust itself is heated by the central star and so NGC 2346 is unusually bright in the infrared part of the spectrum

Planetary nebula NGC 2346 in Unicorn - The planetary nebula NGC 2346 - This nebula is located about 2000 years - light from Earth. A binary star resides in its center. Image obtained by the 3.9m telescope of Siding Spring NGC 2346 is a fine bipolar planetary nebula which is on the celestial equator in the constellation of Monoceros. It is bright and conspicuous and has been extensively studied. Among its most remarkable characteristics is its unusually cool central star, which is a 'spectroscopic binary'. The two components are identified by the effect of their movement around each other on the lines of their spectrum. The double star, which has a period of about 16 days, is also variable, probably due to dust in orbit around it. The dust itself is heated by the central star and so NGC 2346 is unusually bright in the infrared part of the spectrum

PIX4622952

Colliding neutron stars and gravitational waves - Colliding neutron stars and gravitational waves: Artist's view of two colliding neutron stars about to merge and explode in kilonova. This type of event produces gravitational waves and a gamma ray burst. This artist's impression shows two tiny but very dense neutron stars at the point at which they merge and explode as a kilonova. Such a very rare event is expected to produce both gravitational waves and a short gamma-ray burst, both of which were observed on 17 August 2017 by LIGO-Virgo and Fermi/INTEGRAL respectively. Subsequent detailed observations with many ESO telescopes confirmed that this object, seen in the galaxy NGC 4993 about 130 million light-years from the Earth, is indeed a kilonova. Such objects are the main source of very heavy chemical elements, such as gold and platinum, in the Universe

Colliding neutron stars and gravitational waves - Colliding neutron stars and gravitational waves: Artist's view of two colliding neutron stars about to merge and explode in kilonova. This type of event produces gravitational waves and a gamma ray burst. This artist's impression shows two tiny but very dense neutron stars at the point at which they merge and explode as a kilonova. Such a very rare event is expected to produce both gravitational waves and a short gamma-ray burst, both of which were observed on 17 August 2017 by LIGO-Virgo and Fermi/INTEGRAL respectively. Subsequent detailed observations with many ESO telescopes confirmed that this object, seen in the galaxy NGC 4993 about 130 million light-years from the Earth, is indeed a kilonova. Such objects are the main source of very heavy chemical elements, such as gold and platinum, in the Universe

PIX4607586

Exoplanete around a binary star - Artist view - Binary Red Giants Exoplanet - Artist rendering

Exoplanete around a binary star - Artist view - Binary Red Giants Exoplanet - Artist rendering

Miller, Ron (b.1947)

PIX4573130

Artist view of the star Castor - Artist view of the star Castor: The star Castor (Alpha Geminorum) seen in the sky of an exoplanet. This giant star is actually a multiple system composed of three pairs of stars - Beaver (Alpha Geminorum) seen above an exoplanet. This giant star is a multiple system consiting of three stellar pairs

Artist view of the star Castor - Artist view of the star Castor: The star Castor (Alpha Geminorum) seen in the sky of an exoplanet. This giant star is actually a multiple system composed of three pairs of stars - Beaver (Alpha Geminorum) seen above an exoplanet. This giant star is a multiple system consiting of three stellar pairs

Miller, Ron (b.1947)

PIX4607563

Binary Star - Artist View - Binary star. Artist view - Binary Star - mass exchange between a red giant a blue dwarf. When the material removed from the giant comes into contact with the accretion disc of the blue dwarf, it emits X-rays visible in the form of flashes by astronomers. This mass exchange process leads in a few thousand years to a nova explosion. Mass transfer between a red giant and a blue dwarf star producing X - ray emission and later a nova explosion

Binary Star - Artist View - Binary star. Artist view - Binary Star - mass exchange between a red giant a blue dwarf. When the material removed from the giant comes into contact with the accretion disc of the blue dwarf, it emits X-rays visible in the form of flashes by astronomers. This mass exchange process leads in a few thousand years to a nova explosion. Mass transfer between a red giant and a blue dwarf star producing X - ray emission and later a nova explosion

P. Carril

PIX4572585

Binary Star - Artist View - Binary star. Artist view - A white dwarf orbiting very close to her giant red companion tears him little by little from the material. This unstable couple will soon explode in supernova. Mass transfer between a red giant and a white dwarf star producing later a supernova explosion

Binary Star - Artist View - Binary star. Artist view - A white dwarf orbiting very close to her giant red companion tears him little by little from the material. This unstable couple will soon explode in supernova. Mass transfer between a red giant and a white dwarf star producing later a supernova explosion

P. Carril

PIX4572634

Artist's view of the double star Epsilon Aurigae (Almaaz) - Binary star Epsilon Aurigae. Artwork - Almaaz is a binary star with a strange eclipse; it is eclipsed by a gigantic companion for two years. It is believed that this companion could be composed of one or two stars surrounded by a large disc of dust. The visible companion is a yellow supergiant type F, one of the brightest stars in the sky. Epsilon Aurigae (Almaaz) is an eclipsing binary star

Artist's view of the double star Epsilon Aurigae (Almaaz) - Binary star Epsilon Aurigae. Artwork - Almaaz is a binary star with a strange eclipse; it is eclipsed by a gigantic companion for two years. It is believed that this companion could be composed of one or two stars surrounded by a large disc of dust. The visible companion is a yellow supergiant type F, one of the brightest stars in the sky. Epsilon Aurigae (Almaaz) is an eclipsing binary star

S. Numazawa

PIX4572671

Contact Binary Star VFTS 352 - Illustration - Binary Contact Star VFTS 352: VFTS 352 is a contact binary star composed of two O stars located in the Nebula of the Tarantula in the Great Magellan Cloud 160,000 light years from Earth. It's the most massive contact binary ever seen. It is composed of two stars orbiting each other in just over a day, the stars being so close that their surfaces touch each other. This artist's impression shows VFTS 352, the hottest and most massive double star system to date where the two components are in contact and sharing material. The two stars in this extreme system lie about 160,000 light-years from Earth in the Large Magellanic Cloud. This intriguing system could be heading for a dramatic end, either with the formation of a single giant star or as a future binary black hole

Contact Binary Star VFTS 352 - Illustration - Binary Contact Star VFTS 352: VFTS 352 is a contact binary star composed of two O stars located in the Nebula of the Tarantula in the Great Magellan Cloud 160,000 light years from Earth. It's the most massive contact binary ever seen. It is composed of two stars orbiting each other in just over a day, the stars being so close that their surfaces touch each other. This artist's impression shows VFTS 352, the hottest and most massive double star system to date where the two components are in contact and sharing material. The two stars in this extreme system lie about 160,000 light-years from Earth in the Large Magellanic Cloud. This intriguing system could be heading for a dramatic end, either with the formation of a single giant star or as a future binary black hole

PIX4572139

Stellar black hole - Artist's view - A stellar black hole - Artist's view of a system composed of a star orbiting around a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space where gravity is so strong that it stops any form of material or radiation from escaping. Combining observations done with Eso's Very Large Telescope and Nasa's Chandra X-ray telescope, astronomers have uncovered the most powerful pair of jets ever seen from a stellar black hole. The black hole blows a huge bubble of hot gas, 1000 light-years across or twice as large and tens of times more powerful than the other such microquasars. The stellar black hole belongs to a binary system as pictured in this artist's impression

Stellar black hole - Artist's view - A stellar black hole - Artist's view of a system composed of a star orbiting around a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space where gravity is so strong that it stops any form of material or radiation from escaping. Combining observations done with Eso's Very Large Telescope and Nasa's Chandra X-ray telescope, astronomers have uncovered the most powerful pair of jets ever seen from a stellar black hole. The black hole blows a huge bubble of hot gas, 1000 light-years across or twice as large and tens of times more powerful than the other such microquasars. The stellar black hole belongs to a binary system as pictured in this artist's impression

PIX4584773

Stellar black hole - Artist's view - A stellar black hole - Artist's view of a system composed of a Wolf-Rayet star orbiting a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space whose gravitation is so strong that it will prevent any form of material or radiation from escaping. This artist's impression depicts a star-mass black hole. The black hole has a mass of about twenty times the mass of the Sun and is associated with a Wolf-Rayet star: a star that will become a black hole itself. The black hole is stripping matter away from the star as they orbit each other

Stellar black hole - Artist's view - A stellar black hole - Artist's view of a system composed of a Wolf-Rayet star orbiting a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space whose gravitation is so strong that it will prevent any form of material or radiation from escaping. This artist's impression depicts a star-mass black hole. The black hole has a mass of about twenty times the mass of the Sun and is associated with a Wolf-Rayet star: a star that will become a black hole itself. The black hole is stripping matter away from the star as they orbit each other

PIX4584795

Artist's view of an eruptive star - Flare star - Artwork: DG Canum Venaticorum (DG CVN) is a binary star located in the constellation Hunting Dogs. On 23 April 2014, a powerful gamma eruption from this system was recorded by the Swift satellite. DG Canum Venaticorum (DG CVN) is a binary star system in the northern constellation of Canes Venatici. On 2014 April 23, 2014, a gamma-ray superflare event was observed by the Swift satellite coming from the position of this system. It may have been perhaps the most luminous such events ever observed coming from a red dwarf star

Artist's view of an eruptive star - Flare star - Artwork: DG Canum Venaticorum (DG CVN) is a binary star located in the constellation Hunting Dogs. On 23 April 2014, a powerful gamma eruption from this system was recorded by the Swift satellite. DG Canum Venaticorum (DG CVN) is a binary star system in the northern constellation of Canes Venatici. On 2014 April 23, 2014, a gamma-ray superflare event was observed by the Swift satellite coming from the position of this system. It may have been perhaps the most luminous such events ever observed coming from a red dwarf star

PIX4572752

Exoplanete Kepler-64 b: Kepler-64 b or PH1 b (Planet Hunters 1b), is a circumbinary extrasolar planet belonging to the Quadruple Star System Kepler-64 (PH1). PH1b would be a giant gas planet. pH1b (standing for “” Planet Hunters 1””), or by its NASA designation Kepler-64b, is an extrasolar planet found in a circumbinary orbit in the quadruple star system Kepler-64. The giant planet is Neptune-sized, about 20-55 Earth-masses, located 5000 light years from Earth in Cygnus constellation

Exoplanete Kepler-64 b: Kepler-64 b or PH1 b (Planet Hunters 1b), is a circumbinary extrasolar planet belonging to the Quadruple Star System Kepler-64 (PH1). PH1b would be a giant gas planet. pH1b (standing for “” Planet Hunters 1””), or by its NASA designation Kepler-64b, is an extrasolar planet found in a circumbinary orbit in the quadruple star system Kepler-64. The giant planet is Neptune-sized, about 20-55 Earth-masses, located 5000 light years from Earth in Cygnus constellation

Miller, Ron (b.1947)

PIX4608221

Satellite COROT and double star - Illustration - Artist's view of COROT watching a binary star - Artist's view of the satellite COROT in space. Launched at the end of December 2006, this satellite studies the physical phenomena occurring inside the stars. It is also used for the detection of extrasolar planets by observing the periodic micro-eclipses that these planets cause by passing in front of their mother star. Artist's view of COROT, the exoplanet hunter mission led by CNES, with ESA participation. Launched in December 2006, COROT is placed on a circular, polar orbit around Earth that allow for continuous observations of two large and opposite regions in the sky for more than 150 days each. Within each region there are many selected fields that will be monitored in turn. The reason for the oppositely sited regions is that, because of the Earth's movement around the Sun, the sun's rays start to interfere with the observations after 150 days. COROT then rotates by 180 degrees and s

Satellite COROT and double star - Illustration - Artist's view of COROT watching a binary star - Artist's view of the satellite COROT in space. Launched at the end of December 2006, this satellite studies the physical phenomena occurring inside the stars. It is also used for the detection of extrasolar planets by observing the periodic micro-eclipses that these planets cause by passing in front of their mother star. Artist's view of COROT, the exoplanet hunter mission led by CNES, with ESA participation. Launched in December 2006, COROT is placed on a circular, polar orbit around Earth that allow for continuous observations of two large and opposite regions in the sky for more than 150 days each. Within each region there are many selected fields that will be monitored in turn. The reason for the oppositely sited regions is that, because of the Earth's movement around the Sun, the sun's rays start to interfere with the observations after 150 days. COROT then rotates by 180 degrees and s

D. Ducros

PIX4645931

Exoplanete around W Ursae Majoris - Artist view: W Ursae Majoris is a system of binary stars in the constellation of the Great Bear - W Ursae Majoris (W UMA) is the variable star designation for a binary star system in the northern constellation of Ursa Major

Exoplanete around W Ursae Majoris - Artist view: W Ursae Majoris is a system of binary stars in the constellation of the Great Bear - W Ursae Majoris (W UMA) is the variable star designation for a binary star system in the northern constellation of Ursa Major

Miller, Ron (b.1947)

PIX4607971

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

Total eclipse of Moon and binary star (photo)

Total eclipse of Moon and binary star (photo)

Sebastian Voltmer

PIX6333929

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

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

SS 433 - Artist's view: SS 433 is a binary star in the constellation of the Eagle, composed of a supergeant star orbiting around a black hole

SS 433 - Artist's view: SS 433 is a binary star in the constellation of the Eagle, composed of a supergeant star orbiting around a black hole

Miller, Ron (b.1947)

PIX4584875

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

Double star 61 Cygni - Binary star 61 Cygni - 61 Cygni is a binary system of two stars comparable to the Sun. Located 11.4 years - light from the Earth, 61 Cygni is the first star (after the Sun) whose distance was measured thanks to its parallax. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. 61 Cygni is a binary star system in the Constellation Cygnus at approximately 11.4 light - years distance from Earth. Composite image obtained by the Oschin telescope refractor at the Palomar Observatory, USA

Double star 61 Cygni - Binary star 61 Cygni - 61 Cygni is a binary system of two stars comparable to the Sun. Located 11.4 years - light from the Earth, 61 Cygni is the first star (after the Sun) whose distance was measured thanks to its parallax. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. 61 Cygni is a binary star system in the Constellation Cygnus at approximately 11.4 light - years distance from Earth. Composite image obtained by the Oschin telescope refractor at the Palomar Observatory, USA

Vincent Toporenko

PIX4572201

The double star Albireo - The double star Albireo - The double star Albireo (Beta Cygni) is located about 380 years from Earth in the constellation Swan. The double star Albireo (Beta Cygni) is approximately 380 light - years away from Earth in the constellation of Cygnus

The double star Albireo - The double star Albireo - The double star Albireo (Beta Cygni) is located about 380 years from Earth in the constellation Swan. The double star Albireo (Beta Cygni) is approximately 380 light - years away from Earth in the constellation of Cygnus

Stefan Seip

PIX4571868

Gravitational Waves - Gravitational Waves: Two colliding neutron stars create a gravitational wave that spreads over the space-time fabric. Artist's impression of two neutron stars - the compact remnants of what were once massive stars - spiralling towards each other just before merging. The collision of these dense, compact objects produced gravitational waves - fluctuations in the fabric of spacetime - that were detected by the LIGO/Virgo collaboration on 17 August 2017.

Gravitational Waves - Gravitational Waves: Two colliding neutron stars create a gravitational wave that spreads over the space-time fabric. Artist's impression of two neutron stars - the compact remnants of what were once massive stars - spiralling towards each other just before merging. The collision of these dense, compact objects produced gravitational waves - fluctuations in the fabric of spacetime - that were detected by the LIGO/Virgo collaboration on 17 August 2017.

Dixon, Don (b.1951)

PIX4607592

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses (the brightest star in the top center of the image). The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. The small open star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 in Scorpius, about 8,000 light - years away from Earth. Some of the stars in this cluster are extremely massive and emit intense ultraviolet radiation. The brightest object in the picture is designated Pismis 24 - 1. It was once thought to weigh as much as 200 to 300 solar masses. This would not only have m

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses (the brightest star in the top center of the image). The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. The small open star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 in Scorpius, about 8,000 light - years away from Earth. Some of the stars in this cluster are extremely massive and emit intense ultraviolet radiation. The brightest object in the picture is designated Pismis 24 - 1. It was once thought to weigh as much as 200 to 300 solar masses. This would not only have m

PIX4569076

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses. The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. High - resolution observations from Hubble have shed light on the real mass of a star previously believed to be among the heaviest known in our Milky Way. Originally, the mass of the star was thought to be an incredible 200 - 300 solar masses, but turned out to be only 100 solar masses

The cluster of stars Pismis 24 in the Scorpio - Pismis 24 star cluster in Scorpius - This image obtained by the Hubble space telescope shows the cluster of young stars Pismis 24, located about 8000 years - light in the nebula NGC 6357 of the Scorpio. This cluster houses a star that was thought to be the most massive star in our galaxy, between 200 and 300 solar masses. The measurements obtained by the Hubble telescope showed that this star, Pismis 24 - 1, was actually a double star and that its mass was actually only about 100 solar masses. High - resolution observations from Hubble have shed light on the real mass of a star previously believed to be among the heaviest known in our Milky Way. Originally, the mass of the star was thought to be an incredible 200 - 300 solar masses, but turned out to be only 100 solar masses

PIX4569078

Artist view of Cygnus X-1 - Cygnus X-1 is a binary star X and was the first black hole candidate. This system consists of the 226868 HD star, a supergeant star, orbiting around a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space whose gravitation is so strong that it will prevent any form of material or radiation from escaping. Cygnus X-1 is an X-ray binary system and the first black hole candidates to be discovered

Artist view of Cygnus X-1 - Cygnus X-1 is a binary star X and was the first black hole candidate. This system consists of the 226868 HD star, a supergeant star, orbiting around a black hole. A stellar black hole is born from the gravitational collapse of a massive star. The stellar black holes have a mass of some solar masses. A black hole is a region of space whose gravitation is so strong that it will prevent any form of material or radiation from escaping. Cygnus X-1 is an X-ray binary system and the first black hole candidates to be discovered

PIX4584791

Artist's view of Algol, a binary star has eclipse - Binary system Algol - Artist vie

Artist's view of Algol, a binary star has eclipse - Binary system Algol - Artist vie

Dixon, Don (b.1951)

PIX4572650

Artist view of Algol, une star binaire a eclipse - Binary system Algol - Artist view - Binary stars exchange atmospheres in complex interplay of gravity and solar winds

Artist view of Algol, une star binaire a eclipse - Binary system Algol - Artist view - Binary stars exchange atmospheres in complex interplay of gravity and solar winds

Dixon, Don (b.1951)

PIX4572627

Capella Star in the Coach - Star Capella in Auriga - The brightest star in the constellation of the Coach, Capella (Aur), is a yellow giant star with an apparent magnitude of 0.08 and the sixth brightest star in the sky. Located 42 years of light from us, it is one of the 100 closest stars on Earth. Star Capella in Auriga constellation is the 6th brightest star in the night sky. It is located 42 light years from the earth

Capella Star in the Coach - Star Capella in Auriga - The brightest star in the constellation of the Coach, Capella (Aur), is a yellow giant star with an apparent magnitude of 0.08 and the sixth brightest star in the sky. Located 42 years of light from us, it is one of the 100 closest stars on Earth. Star Capella in Auriga constellation is the 6th brightest star in the night sky. It is located 42 light years from the earth

Jerry Lodriguss

PIX4571743

Alcor and Mizar double star in the Great Bear - Alcor and Mizar in Ursa Major - Mizar is the brightest star in the picture. Double star system, Mizar is the brightest star

Alcor and Mizar double star in the Great Bear - Alcor and Mizar in Ursa Major - Mizar is the brightest star in the picture. Double star system, Mizar is the brightest star

PIX4571970

Futuristic advertising poster for tourism on Kepler-16 b - Illustration - Futuristic Advert for tourism on Kepler-16 b - Illustration: Advertising promoting tourism on Kepler-16 b. This exoplanet is orbiting in the habitable area of the Starsystem Kepler-16 (AB), an Algol-type binary star located at a distance of about 200 light years from the Sun in the constellation of Swan. An astronaut could contemplate a double sunset. Like Luke Skywalker's planet “” Tatooine””” in Star Wars, Kepler-16b orbits a pair of stars. Described here as a terrestrial planet, Kepler-16b might also be a gas giant like Saturn. Prospects for life on this unusual world aren't good, as it has a temperature similar to that of dry ice. But the discovery indicates that the movie's iconic double-sunset is anything but science fiction.

Futuristic advertising poster for tourism on Kepler-16 b - Illustration - Futuristic Advert for tourism on Kepler-16 b - Illustration: Advertising promoting tourism on Kepler-16 b. This exoplanet is orbiting in the habitable area of the Starsystem Kepler-16 (AB), an Algol-type binary star located at a distance of about 200 light years from the Sun in the constellation of Swan. An astronaut could contemplate a double sunset. Like Luke Skywalker's planet “” Tatooine””” in Star Wars, Kepler-16b orbits a pair of stars. Described here as a terrestrial planet, Kepler-16b might also be a gas giant like Saturn. Prospects for life on this unusual world aren't good, as it has a temperature similar to that of dry ice. But the discovery indicates that the movie's iconic double-sunset is anything but science fiction.

PIX4608238

Exoplanete around Beta Lyrae - Artist view - Beta Lyrae - Artist view - Artist view of Beta Lyrae (Sheliak), a binary star with eclipse located in the constellation of Lyra. Gases spiral away from a binary star

Exoplanete around Beta Lyrae - Artist view - Beta Lyrae - Artist view - Artist view of Beta Lyrae (Sheliak), a binary star with eclipse located in the constellation of Lyra. Gases spiral away from a binary star

Dixon, Don (b.1951)

PIX4572620

Life on an exoplanet - Extraterrestrial life - View of an alien life artist on the surface of an exoplanet. If life is plentiful in the universe, there are likely inhabited planets that are part of multiple star systems

Life on an exoplanet - Extraterrestrial life - View of an alien life artist on the surface of an exoplanet. If life is plentiful in the universe, there are likely inhabited planets that are part of multiple star systems

Walter B Myers

PIX4573265

Alpha Centauri - Alpha Centauri - Alpha Centauri is a double star (Alpha Centauri A and B) near the Sun, 4.36 years - light. These two stars are relatively similar to the Sun. Alpha Centauri is a binary star (Alpha Centauri A and B) located at a distance of 4.36 light - years, or 41 million km, in the direction of the southern constellation Centaurus (The Centaur). Alpha Centauri A and Alpha Centauri B, are rather similar to the Sun; their stellar spectral types are “” G2V”” and “” K1V””, respectively. Alpha Centauri A and B orbit each other at a distance of about 3600 million km, or somewhat more than the distance of planet Uranus from the Sun. The orbital period is almost exactly 80 years

Alpha Centauri - Alpha Centauri - Alpha Centauri is a double star (Alpha Centauri A and B) near the Sun, 4.36 years - light. These two stars are relatively similar to the Sun. Alpha Centauri is a binary star (Alpha Centauri A and B) located at a distance of 4.36 light - years, or 41 million km, in the direction of the southern constellation Centaurus (The Centaur). Alpha Centauri A and Alpha Centauri B, are rather similar to the Sun; their stellar spectral types are “” G2V”” and “” K1V””, respectively. Alpha Centauri A and B orbit each other at a distance of about 3600 million km, or somewhat more than the distance of planet Uranus from the Sun. The orbital period is almost exactly 80 years

PIX4571865

October 16, 2012: Alpha Centauri A and B are located 4.36 light years from the Sun. These two stars are relatively similar to the Sun - This wide-field view of the sky around the bright star Alpha Centauri was created from photographic images forming part of the Digitized Sky Survey 2. The star appears so big just because of the scattering of light by the telescope's optics as well as in the photographic emulsion. Alpha Centauri is the closest star system to the Solar System

October 16, 2012: Alpha Centauri A and B are located 4.36 light years from the Sun. These two stars are relatively similar to the Sun - This wide-field view of the sky around the bright star Alpha Centauri was created from photographic images forming part of the Digitized Sky Survey 2. The star appears so big just because of the scattering of light by the telescope's optics as well as in the photographic emulsion. Alpha Centauri is the closest star system to the Solar System

PIX4650931

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

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

PIX4650930

The three stars that make up the Centaur Alpha System are the closest stars to the Sun. The image on the left shows the double alpha star of the Centauri (Alpha Centauri A and B) overexposed to the red dwarf star Proxima of the Centaurus (indicated by the arrow). Proxima du Centaur is located at a distance of 4.22 years - light from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 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. Location of the Alpha Centauri triple stellar system in the sky. The brighter stars (Alpha Centauri A and B) are strongly overexposed, with the outlying member, Proxima lying approx. 2.2* to the south - west (arrow). Smaller areas around the stars are shown in the inserts to the right. The photo has been reproduced from a blue - sen

The three stars that make up the Centaur Alpha System are the closest stars to the Sun. The image on the left shows the double alpha star of the Centauri (Alpha Centauri A and B) overexposed to the red dwarf star Proxima of the Centaurus (indicated by the arrow). Proxima du Centaur is located at a distance of 4.22 years - light from the Sun but is invisible to the naked eye. Alpha Centauri A and B are a little further away, 4.36 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. Location of the Alpha Centauri triple stellar system in the sky. The brighter stars (Alpha Centauri A and B) are strongly overexposed, with the outlying member, Proxima lying approx. 2.2* to the south - west (arrow). Smaller areas around the stars are shown in the inserts to the right. The photo has been reproduced from a blue - sen

PIX4571830

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

Southern Crown Nebula - The CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clouds'), blotting out the background stars. Fainter features can be seen here. Shiny NGC 6726 - 27 near middle of image contains both a visual binary and a variable star. Othe

Southern Crown Nebula - The CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clouds'), blotting out the background stars. Fainter features can be seen here. Shiny NGC 6726 - 27 near middle of image contains both a visual binary and a variable star. Othe

PIX4620295

Southern Crown Nebula - The tail of the CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Our picture is about 4.5 degrees across and the extremely faint Corona Australis nebula meanders along the Sgr - CRA border nebula in the same E - W direction. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clou

Southern Crown Nebula - The tail of the CRA reflection nebula - R Coronae Australis is a region of star formations visible in the southern hemisphere. It is located about 500 light years away from Earth. On the right, the globular cluster NGC 6723, located 30 000 light years from Earth in Sagittarius. Image made with the 1.2m Telescope of Schmidt UK from Siding Spring. Corona Australis (the southern crown, CRA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Our picture is about 4.5 degrees across and the extremely faint Corona Australis nebula meanders along the Sgr - CRA border nebula in the same E - W direction. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clou

PIX4620260

Globular cluster NGC 6401 in Ophiuchus - Globular cluster NGC 6401 in Ophiuchus - The NASA/ESA Hubble Space Telescope has used its powerful optics to separate the globular cluster NGC 6401 into its constituent stars. What was once only visible as a ghostly mist in the eyepieces of astronomical instruments has been transformed into a stunning stellar landscape. NGC 6401 can be found within the constellation of Ophiuchus (The Serpent Bearer). The globular cluster itself is relatively faint, so a telescope and some observational experience are required to see it. Globular clusters are very rich, and generally spherical, collections of stars, hence the name. They orbit the cores of galaxies, with the force of gravity also keeping the stars bound as a group. There are around 160 globular clusters associated with our Milky Way, of which NGC 6401 is one. These objects are very old, containing some of the most ancient stars known. However, there are many mysteries surrounding them, with the or

Globular cluster NGC 6401 in Ophiuchus - Globular cluster NGC 6401 in Ophiuchus - The NASA/ESA Hubble Space Telescope has used its powerful optics to separate the globular cluster NGC 6401 into its constituent stars. What was once only visible as a ghostly mist in the eyepieces of astronomical instruments has been transformed into a stunning stellar landscape. NGC 6401 can be found within the constellation of Ophiuchus (The Serpent Bearer). The globular cluster itself is relatively faint, so a telescope and some observational experience are required to see it. Globular clusters are very rich, and generally spherical, collections of stars, hence the name. They orbit the cores of galaxies, with the force of gravity also keeping the stars bound as a group. There are around 160 globular clusters associated with our Milky Way, of which NGC 6401 is one. These objects are very old, containing some of the most ancient stars known. However, there are many mysteries surrounding them, with the or

PIX4564826

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