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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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NGC 4650A: Strange Galaxy and Dark Matter
Title
NGC 4650A: Strange Galaxy and Dark Matter
Title
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Explanation:
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This strangely distorted galaxy of stars [ http://www.eso.org/…] is cataloged as NGC 4650A. It lies about 165 million light-years away in the southern constellation Centaurus [ http://www.astro.wi…Centaurus.html ]. The complex system seems to have at least two parts, a flattened disk of stars with a dense, bright, central core and a sparse, sharply tilted ring of gas, dust and stars [ http://antwrp.gsfc.…]. Observations show that the stars in the disk and the stars and gas in the ring really do move in two different, nearly perpendicular planes, probably as the result of a past galaxy vs. galaxy collision [ http://oposite.stsc…]. The observed motions within both disk and ring also indicate the
Explanation
This strangely distorted galaxy of stars [ http://www.eso.org/…] is cataloged as NGC 4650A. It lies about 165 million light-years away in the southern constellation Centaurus [ http://www.astro.wi…Centaurus.html ]. The complex system seems to have at least two parts, a flattened disk of stars with a dense, bright, central core and a sparse, sharply tilted ring of gas, dust and stars [ http://antwrp.gsfc.…]. Observations show that the stars in the disk and the stars and gas in the ring really do move in two different, nearly perpendicular planes, probably as the result of a past galaxy vs. galaxy collision [ http://oposite.stsc…]. The observed motions within both disk and ring also indicate the Explanation
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Credit and Copyright:
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Credit_and_Copyright
Credit and Copyright
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keyword:
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galaxy
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keyword:
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dark matter
keyword
dark matter
keyword
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keyword:
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collision
keyword
collision
keyword
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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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ESO
facet_what
ESO
facet_what
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facet_what:
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Centaurus
facet_what
Centaurus
facet_what
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facet_what:
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VLT
facet_what
VLT
facet_what
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facet_what:
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Very Large Telescope
facet_what
Very Large Telescope
facet_what
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facet_what:
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dark matter
facet_what
dark matter
facet_what
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facet_what:
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matter
facet_what
matter
facet_what
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facet_what:
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New General Catalogue (NGC)
facet_what
New General Catalogue (NGC)
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-ap980625
UID
SPD-APOD-ap980625
UID
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