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Collection:
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NASA Astronomy Picture of the Day Collection
Collection
NASA Astronomy Picture of the Day Collection
Collection
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Title:
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M31: The Andromeda Galaxy
Title
M31: The Andromeda Galaxy
Title
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Explanation:
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Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object [ http://antwrp.gsfc.…] on Messier's [ http://antwrp.gsfc.…] list of diffuse sky objects. M31 is so distant it takes about 2 million years for light to reach us from there. Much about M31 remains unknown, including why the center contains two nuclei.
Explanation
Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object [ http://antwrp.gsfc.…] on Messier's [ http://antwrp.gsfc.…] list of diffuse sky objects. M31 is so distant it takes about 2 million years for light to reach us from there. Much about M31 remains unknown, including why the center contains two nuclei. Explanation
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Credit and Copyright:
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Jason Ware [ mailto:jware@galaxyp hoto.com ]
Credit_and_Copyright
Jason Ware [ mailto:jware@galaxyp hoto.com ]
Credit and Copyright
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keyword:
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galaxy
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keyword:
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M31
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keyword:
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local group
keyword
local group
keyword
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facet_where:
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Milky Way Galaxy
facet_where
Milky Way Galaxy
facet_where
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facet_where:
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M31
facet_where
M31
facet_where
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facet_where:
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Andromeda Galaxy
facet_where
Andromeda Galaxy
facet_where
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facet_where:
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Oregon
facet_where
Oregon
facet_where
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facet_where:
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Goddard Space Flight Center (GSFC)
facet_where
Goddard Space Flight Center (GSFC)
facet_where
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facet_what:
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Andromeda
facet_what
Andromeda
facet_what
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original url:
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original_url
original url
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UID:
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SPD-APOD-ap971101
UID
SPD-APOD-ap971101
UID
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