Andromeda Galaxy: Difference between revisions
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imported>Thomas Simmons (New page: Andromeda is a spiral galaxy approximately 2.5 million light-years away from Earth. The largest of our nearest galactic neighbors, its disk is about 260,000 light-years in diameter. The di...) |
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Andromeda is a spiral galaxy approximately 2.5 million light-years away from Earth. The largest of our nearest galactic neighbors, its disk is about 260,000 light-years in diameter. The disc of the Milky Way galaxy, our own, is considerably smaller, approximately 100,000 light years across.<ref>[http://www.nasa.gov/vision/universe/starsgalaxies/spitzerf-20061003.html Andromeda] NASA</ref> | Andromeda is a spiral galaxy approximately 2.5 million light-years away from Earth. The largest of our nearest galactic neighbors, its disk is about 260,000 light-years in diameter. The disc of the Milky Way galaxy, our own, is considerably smaller, approximately 100,000 light years across.<ref>[http://www.nasa.gov/vision/universe/starsgalaxies/spitzerf-20061003.html Andromeda] NASA</ref> | ||
[[Image:159945main pia08787-browse.jpg|right|thumb|350px|{{#ifexist:Template:159945main pia08787-browse.jpg/credit|{{159945main pia08787-browse.jpg/credit}}<br/>|}}'''Andromeda Galaxy''': Composite of Galaxy Evolution Explorer ultraviolet detectors and Spitzer's super-sensitive infrared imaging photometer disclose embryonic stars. Young, hot, high-mass stars (blue); older stars (green); Bright yellow spot at the galaxy's center - a particularly dense population of old stars; Cooler, dusty regions where stars are forming (red swaths); Populations of hot, high-mass stars and cooler, dust-enshrouded stars co-exist (pinkish purple areas).]] | |||
Revision as of 17:09, 25 December 2007
Andromeda is a spiral galaxy approximately 2.5 million light-years away from Earth. The largest of our nearest galactic neighbors, its disk is about 260,000 light-years in diameter. The disc of the Milky Way galaxy, our own, is considerably smaller, approximately 100,000 light years across.[1]
Andromeda Galaxy: Composite of Galaxy Evolution Explorer ultraviolet detectors and Spitzer's super-sensitive infrared imaging photometer disclose embryonic stars. Young, hot, high-mass stars (blue); older stars (green); Bright yellow spot at the galaxy's center - a particularly dense population of old stars; Cooler, dusty regions where stars are forming (red swaths); Populations of hot, high-mass stars and cooler, dust-enshrouded stars co-exist (pinkish purple areas).