Messier 100
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| Messier 100 | |
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| Observation data (J2000 epoch) | |
|---|---|
| Constellation | Coma Berenices[1] |
| Right ascension | 12h 22m 54.9s[2] |
| Declination | +15° 49′ 21″[2] |
| Redshift | 1571 ± 1 km/s[2] |
| Distance | 52.5 Mly[3] |
| Type | SAB(s)bc[2] |
| Apparent dimensions (V) | 7′.4 × 6′.3[2] |
| Apparent magnitude (V) | 10.1[2] |
| Other designations | |
| NGC 4321 | |
| See also: Galaxy, List of galaxies | |
Messier 100 (also known as NGC 4321) is a spiral galaxy about 52.5 million light-years away in the constellation Coma Berenices. It was discovered by Pierre Méchain in 1781. It is one of the brightest galaxies in the Virgo cluster. Five supernovae have been identified in M100: SN 1901B, SN 1914A, SN 1959E, SN 1979C and SN 2006X. M100 also has a satellite galaxy named NGC 4323.
[edit] Other images
 Full look at center by HST |
 Before and after the fix of HST |
[edit] External links
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[edit] References
- ^ R. W. Sinnott, editor (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 0-933-34651-4.
- ^ a b c d e f NASA/IPAC Extragalactic Database. Results for NGC 4321. Retrieved on 2006-08-31.
- ^ Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method. (Ferrarese et al. 1996). Retrieved on 2006-08-31.
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