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THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant itTHE M101 GROUP
The Galaxies of the M101 Group. This is a list of the main galaxies in the M101 group. This group has never been properly studied and so this list only contains the THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant itTHE M101 GROUP
The Galaxies of the M101 Group. This is a list of the main galaxies in the M101 group. This group has never been properly studied and so this list only contains the THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE 200 BRIGHTEST GALAXIES The 200 Brightest Galaxies. This is a list of the 200 brightest galaxies according to the Third Reference Catalogue of Bright Galaxies. This is every galaxy in the catalogue brighter thanmagnitude 11.24.
A MAP OF THE ORION ARM WITHIN 2000 LIGHT YEARS A Map of the Orion Arm within 2000 light years. This is a map of the most luminous stars within 2000 light years. Every point on this map is an actual star listed in THE SCULPTOR SUPERCLUSTERS The Sculptor Superclusters. The superclusters in the Sculptor region of the sky are not obvious structures. This map is a plot of the brightest galaxies (from the Principal Galaxies Catalogue) in this region of the sky and although the locations of the main clusters are marked, the superclusters are hard to THE SHAPLEY SUPERCLUSTER The Shapley Supercluster. The Shapley Supercluster is a famous supercluster. This map shows every galaxy brighter than magnitude 16.5 (from the HyperLeda database) in this area of the sky. The four main clusters of the Centaurus supercluster (with yellow labels) lie directly in front of the Shapley supercluster. Behind the Centaurus supercluster at a distance of 500 million light years is NGC 3372 - THE ETA CARINAE NEBULA NGC 3372 - The Eta Carinae Nebula. The Eta Carinae Nebula is a giant nebula 9000 light years from us in the Sagittarius Arm of the Galaxy. Although it is a large distance from us, the central region of this nebula is bright enough to see with the naked eye (although only THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant itTHE M101 GROUP
The Galaxies of the M101 Group. This is a list of the main galaxies in the M101 group. This group has never been properly studied and so this list only contains the THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant itTHE M101 GROUP
The Galaxies of the M101 Group. This is a list of the main galaxies in the M101 group. This group has never been properly studied and so this list only contains the THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE 200 BRIGHTEST GALAXIES The 200 Brightest Galaxies. This is a list of the 200 brightest galaxies according to the Third Reference Catalogue of Bright Galaxies. This is every galaxy in the catalogue brighter thanmagnitude 11.24.
A MAP OF THE ORION ARM WITHIN 2000 LIGHT YEARS A Map of the Orion Arm within 2000 light years. This is a map of the most luminous stars within 2000 light years. Every point on this map is an actual star listed in THE SHAPLEY SUPERCLUSTER The Shapley Supercluster. The Shapley Supercluster is a famous supercluster. This map shows every galaxy brighter than magnitude 16.5 (from the HyperLeda database) in this area of the sky. The four main clusters of the Centaurus supercluster (with yellow labels) lie directly in front of the Shapley supercluster. Behind the Centaurus supercluster at a distance of 500 million light years is THE SCULPTOR SUPERCLUSTERS The Sculptor Superclusters. The superclusters in the Sculptor region of the sky are not obvious structures. This map is a plot of the brightest galaxies (from the Principal Galaxies Catalogue) in this region of the sky and although the locations of the main clusters are marked, the superclusters are hard to THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
MULTIPLE STAR ORBITS Triple Star Systems. Shown on the left is a typical triple star system. There are two stars orbiting each other at close range, and a third, more distant, star orbiting around the first two. THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STAR CLUSTERS AND NEBULAE WITHIN 10000 LIGHT YEARS Star Clusters and Nebulae within 10000 light years. This is a map of the major star clusters and nebulae within 10000 light years. The map is orientated so that we are looking straight down at the galactic plane with the Sun at the centre of the map. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
MULTIPLE STAR ORBITS Triple Star Systems. Shown on the left is a typical triple star system. There are two stars orbiting each other at close range, and a third, more distant, star orbiting around the first two. THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STAR CLUSTERS AND NEBULAE WITHIN 10000 LIGHT YEARS Star Clusters and Nebulae within 10000 light years. This is a map of the major star clusters and nebulae within 10000 light years. The map is orientated so that we are looking straight down at the galactic plane with the Sun at the centre of the map. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 1 BILLION LIGHT YEARS This is a close-up look at the central portion of the map above, showing the nearest superclusters, walls and voids within 500 millionlight years.
THE UNIVERSE WITHIN 50000 LIGHT YEARS About the Map This map shows the full extent of the Milky Way galaxy - a spiral galaxy of at least two hundred billion stars. Our Sun is buried deep within the Orion STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STARS WITHIN 20 LIGHT YEARS Stars within 20 light years. This is a map of all known stars that lie within 20 light years. There is a total of 83 known star systems within this distance containing 109 stars and 8 brown dwarfs. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. THE CLASSIFICATION OF STARS The Classification of Stars. This diagram shows most of the major types of stars. The vast majority of stars are main sequence stars - these are star like the Sun that are burning hydrogen into helium to produce their energy. NGC 2237, 2238, 2239 AND 2246 NGC 2237, 2238, 2239 and 2246 - The Rosette Nebula. Although the Rosette nebula is not very bright - it is much too faint to see with the naked eye - it is famous mainly because it is a striking circular shape resembling a flower. THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. MULTIPLE STAR ORBITS Triple Star Systems. Shown on the left is a typical triple star system. There are two stars orbiting each other at close range, and a third, more distant, star orbiting around the first two. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STAR CLUSTERS AND NEBULAE WITHIN 10000 LIGHT YEARS Star Clusters and Nebulae within 10000 light years. This is a map of the major star clusters and nebulae within 10000 light years. The map is orientated so that we are looking straight down at the galactic plane with the Sun at the centre of the map. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. MULTIPLE STAR ORBITS Triple Star Systems. Shown on the left is a typical triple star system. There are two stars orbiting each other at close range, and a third, more distant, star orbiting around the first two. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STAR CLUSTERS AND NEBULAE WITHIN 10000 LIGHT YEARS Star Clusters and Nebulae within 10000 light years. This is a map of the major star clusters and nebulae within 10000 light years. The map is orientated so that we are looking straight down at the galactic plane with the Sun at the centre of the map. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 1 BILLION LIGHT YEARS This is a close-up look at the central portion of the map above, showing the nearest superclusters, walls and voids within 500 millionlight years.
THE UNIVERSE WITHIN 50000 LIGHT YEARS About the Map This map shows the full extent of the Milky Way galaxy - a spiral galaxy of at least two hundred billion stars. Our Sun is buried deep within the Orion THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. STARS WITHIN 20 LIGHT YEARS Stars within 20 light years. This is a map of all known stars that lie within 20 light years. There is a total of 83 known star systems within this distance containing 109 stars and 8 brown dwarfs. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. THE CLASSIFICATION OF STARS The Classification of Stars. This diagram shows most of the major types of stars. The vast majority of stars are main sequence stars - these are star like the Sun that are burning hydrogen into helium to produce their energy. NGC 2237, 2238, 2239 AND 2246 NGC 2237, 2238, 2239 and 2246 - The Rosette Nebula. Although the Rosette nebula is not very bright - it is much too faint to see with the naked eye - it is famous mainly because it is a striking circular shape resembling a flower. THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant it THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant it THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre.PLANETARY NEBULAE
Planetary Nebulae. These nebulae are formed during the last stages of a star's life when a red giant star casts of its outer layers in a process which leads to the star becoming a white dwarf. THE 200 BRIGHTEST GALAXIES The 200 Brightest Galaxies. This is a list of the 200 brightest galaxies according to the Third Reference Catalogue of Bright Galaxies. This is every galaxy in the catalogue brighter thanmagnitude 11.24.
THE PERSEUS-PISCES SUPERCLUSTER The Perseus-Pisces Supercluster. The Perseus-Pisces supercluster is the most obvious supercluster in the sky. Although, like all superclusters, it is much too faint to be seen with the naked eye, this plot of bright galaxies in this region of the sky (from the Principal Galaxies Catalogue) shows how prominant it THE BOÖTES SUPERCLUSTERS The Boötes Superclusters. There are two superclusters in Bootes within one billion light years. The nearest one is about 830 million light years away - the second one lies directly behind it at a distance of about 1 billion light years. THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. MULTIPLE STAR ORBITS Triple Star Systems. Shown on the left is a typical triple star system. There are two stars orbiting each other at close range, and a third, more distant, star orbiting around the first two. THE UNIVERSE WITHIN 5 MILLION LIGHT YEARS Some of the galaxies in the Local Group. Shown below are four of the galaxies in the Local Group. The Triangulum galaxy (left) is a spiral galaxy and the third largest galaxy in the local group, it STAR CLUSTERS AND NEBULAE WITHIN 10000 LIGHT YEARS Star Clusters and Nebulae within 10000 light years. This is a map of the major star clusters and nebulae within 10000 light years. The map is orientated so that we are looking straight down at the galactic plane with the Sun at the centre of the map. THE UNIVERSE WITHIN 100 MILLION LIGHT YEARS About the Map Our galaxy is just one of thousands that lie within 100 million light years. The above map shows how galaxies tend to cluster into groups, the largest nearby cluster is the Virgo cluster a concentration of several hundred galaxies which dominates the galaxygroups around it.
IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
NGC 2237, 2238, 2239 AND 2246 NGC 2237, 2238, 2239 and 2246 - The Rosette Nebula. Although the Rosette nebula is not very bright - it is much too faint to see with the naked eye - it is famous mainly because it is a striking circular shape resembling a flower. A MAP OF THE ORION ARM WITHIN 2000 LIGHT YEARS A Map of the Orion Arm within 2000 light years. This is a map of the most luminous stars within 2000 light years. Every point on this map is an actual star listed in THE CLASSIFICATION OF STARS The Classification of Stars. This diagram shows most of the major types of stars. The vast majority of stars are main sequence stars - these are star like the Sun that are burning hydrogen into helium to produce their energy.THE M101 GROUP
The Galaxies of the M101 Group. This is a list of the main galaxies in the M101 group. This group has never been properly studied and so this list only contains the THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. THE UNIVERSE WITHIN 14 BILLION LIGHT YEARS The universe has been partially mapped out to about 2 billion light years. Here is a map showing many of the major superclusters within 2 billion light years. THE UNIVERSE WITHIN 250 LIGHT YEARS The Hyades Star Cluster. The Hyades cluster is the nearest major star cluster and the only one close enough to be mapped in three dimensions. The Hyades cluster is a bright object in Taurus, but the view is partially ruined by Aldebaran - a brilliant orange giant starthat lies in
THE BIG BANG AND THE EXPANSION OF THE UNIVERSE (2) Where did the Big Bang occur in the Universe? There is a common assumption that the Big Bang was an explosion that occured in empty space and that the explosion expanded into the empty space. THE UNIVERSE WITHIN 2 BILLION LIGHT YEARS The Universe within 2 billion Light Years. This is a map of all the major known superclusters within two billion light years plotted onto the supergalactic plane. THE UNIVERSE WITHIN 200 MILLION LIGHT YEARS The major Groups and Clusters of Galaxies within 200 million ly. This is a list of most of the large groups and clusters of galaxies within 200 million light years. The three dominant clusters are the Virgo, Centaurus and Hydra clusters. There is one other Abell cluster - A3565 - within this region although it does not seem to be very rich. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. THE UNIVERSE WITHIN 5000 LIGHT YEARS About the Map This is a map of our corner of the Milky Way galaxy. The Sun is located in the Orion Arm - a fairly minor arm compared with the Sagittarius Arm, which is located closer to the galactic centre. THE UNIVERSE WITHIN 12.5 LIGHT YEARS Information on the Nearest Stars Sun - Type= G2, Magnitude=-26.8, Distance=0.0000158 ly A typical yellow dwarf star. It has eight planets orbiting it. Proxima Centauri - Type= M5, Magnitude=11.0, Distance=4.22 ly This dim red dwarf is the nearest star to the Sun, and it is a member of the Alpha Centauri system despite lying 0.24 light years from the main pair of stars, requiring over one THE HOROLOGIUM SUPERCLUSTER The Horologium Supercluster. The Horologium Supercluster is a gigantic supercluster with a length of about 550 million light years. This map shows every galaxy brighter than magnitude 17 (from the HyperLeda database) in this area of the sky. All of the major clusters of galaxies in the Horologium supercluster are marked. A MAP OF THE MILKY WAY A Map of the Milky Way. This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. STARS WITHIN 50 LIGHT YEARS A List of Stars within 50 Light Years. This is a list of all the stars marked on the map. This is every star brighter than magnitude 6.5 within 50 light years, so all of these stars can be seen with the naked eye although most of them are quite faint. MULTIPLE STAR ORBITS Triple Star Systems. Shown on the left is a typical triple star system. There are two stars orbiting each other at close range, and a third, more distant, star orbiting around the first two. THE UNIVERSE WITHIN 5 MILLION LIGHT YEARS Some of the galaxies in the Local Group. Shown below are four of the galaxies in the Local Group. The Triangulum galaxy (left) is a spiral galaxy and the third largest galaxy in the local group, it STAR CLUSTERS AND NEBULAE WITHIN 10000 LIGHT YEARS Star Clusters and Nebulae within 10000 light years. This is a map of the major star clusters and nebulae within 10000 light years. The map is orientated so that we are looking straight down at the galactic plane with the Sun at the centre of the map. THE UNIVERSE WITHIN 100 MILLION LIGHT YEARS About the Map Our galaxy is just one of thousands that lie within 100 million light years. The above map shows how galaxies tend to cluster into groups, the largest nearby cluster is the Virgo cluster a concentration of several hundred galaxies which dominates the galaxygroups around it.
IC1318 - THE GAMMA CYGNI NEBULA The Nebulae associated with the Gamma Cygni Nebula. This is a list of the principal nebulae in this region. The Gamma Cygni nebula, IC 1318, has three bright patches (parts A, B and C,) and they each have a diameter of about 50 light years. The Crescent nebula (NGC 6888) consists of some shells of gas energised by a very energeticWolf-Rayet star.
NGC 2237, 2238, 2239 AND 2246 NGC 2237, 2238, 2239 and 2246 - The Rosette Nebula. Although the Rosette nebula is not very bright - it is much too faint to see with the naked eye - it is famous mainly because it is a striking circular shape resembling a flower. A MAP OF THE ORION ARM WITHIN 2000 LIGHT YEARS A Map of the Orion Arm within 2000 light years. This is a map of the most luminous stars within 2000 light years. Every point on this map is an actual star listed in THE CLASSIFICATION OF STARS The Classification of Stars. This diagram shows most of the major types of stars. The vast majority of stars are main sequence stars - these are star like the Sun that are burning hydrogen into helium to produce their energy.THE M101 GROUP
The Galaxies of the M101 Group. This is a list of the main galaxies in the M101 group. This group has never been properly studied and so this list only contains the -------------------------Catal
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This web page is designed to give everyone an idea of what our universe actually looks like. There are nine main maps on this web page, each one approximately ten times the scale of the previous one. The first map shows the nearest stars and then the other maps slowly expand out until we have reached the scale of the entire visibleuniverse.
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12.5 LIGHT YEARS FROM THE SUN The Nearest Stars The closest star to the Sun is only 7000 times further than the edge of our solar system. This map shows all of the stellar systems that lie within 12.5 light years from us. 250 LIGHT YEARS FROM THE SUN The Solar Neighbourhood A large proportion of the stars visible with the naked eye are within 250 light years. This map shows this tiny section of our galaxy that surrounds our Sun. 5 000 LIGHT YEARS FROM THE SUN The Orion Arm The local arm of our galaxy is called the Orion Arm. It is depicted here showing the millions of stars interspersed with clouds of interstellar gas. 50 000 LIGHT YEARS FROM THE SUN The Milky Way Galaxy Our galaxy is a loose spiral disc of two hundred billion stars rotating around a compact centre. This is a diagram showing the main features of the Galaxy. 500 000 LIGHT YEARS FROM THE SUN The Satellite Galaxies The Milky Way is surrounded by several dwarf galaxies slowly orbiting it in periods of billions of years. This map shows the nearest of these satellite galaxies. 5 MILLION LIGHT YEARS FROM THE SUN The Local Group The Milky Way is gravitationally bound to two other large spiral galaxies as well as dozens of dwarf galaxies. This local group of galaxies is illustrated here. 100 MILLION LIGHT YEARS FROM THE SUN The Virgo Supercluster The local group of galaxies is just one of many centred around the massive Virgo Cluster. Collectively, all of these groups and clusters form a unit known as the Virgo Supercluster shownhere.
1 BILLION LIGHT YEARS FROM THE SUN The Neighbouring Superclusters The distribution of galaxies in the universe is far from regular. They tend to clump together into huge supercluster formations. This map shows many of the superclusters within 1 billion light years of us. 14 BILLION LIGHT YEARS FROM THE SUN The Visible Universe Although our knowledge of the large scale structure of the universe is incomplete, many large and small scale features are visible right out to the very edge of the visible universe. The entire universe is fairly uniform, as this map shows. ------------------------- This web page created by Richard Powell . Last updated: 30Jul 2006
Visits since 1 Aug 2000: download the best free mp3 ringtones , wallpapers, and other. * 30 Jul 2006: I added another galaxy (Ursa Major II) to the map of the Satellite galaxies . * 22 Jul 2006: I have replaced the Map of the Milkyway Galaxywith a new version.
* 16 May 2006: I added a copyright statement to the bottom of thispage.
Other changes
-------------------------GLOSSARY
This is a glossary which should hopefully explain most of the unexplained terms used in this web page.USEFUL LINKS
This is my attempt at a list of other web pages which have maps and other useful data on various aspects of the universe.NEGATIVE IMAGES
Here are some negative image versions of some of the maps on this web page, showing dark objects against a white background, which maybe easier to print.
COPYRIGHT
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