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Revision as of 23:53, 7 September 2008
| Messier 108 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major[1] |
| Right ascension | 11h 11m 31.0s[2] |
| Declination | +55° 40′ 27″[2] |
| Redshift | 699 ± 9 km/s[2] |
| Distance | 14.1 Mpc[3] |
| Apparent magnitude (V) | 10.7[2] |
| Characteristics | |
| Type | SB(s)cd[2] |
| Apparent size (V) | 8′.7 × 2′.2[2] |
| Other designations | |
| NGC 3556,[2] PGC 34030,[2] UGC 6225[2] | |
Messier 108 (also known as NGC 3556) is an edge-on spiral galaxy in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 or 1782.[4]
See also
- NGC 2403 - a similar spiral galaxy
- NGC 4631 - a similar spiral galaxy
- NGC 7793 - a similar spiral galaxy
External links
- SEDS: Spiral Galaxy M108
- Messier 108 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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.
{{cite book}}:|author=has generic name (help) - ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 3556. Retrieved 2007-06-21.
- ^ Q. Daniel Wang et al., [http://arxiv.org/abs/astro-ph/0308150v1 Chandra Observation of the Edge-on Galaxy NGC 3556 (M 108): Violent Galactic Disk-halo Interaction Revealed]
- ^ Kepple, George Robert (1998). The Night Sky Observer's Guide, Volume 2. Willmann-Bell, Inc. p. 399. ISBN 0-943396-60-3.
{{cite book}}: Unknown parameter|coauthors=ignored (|author=suggested) (help)
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