NGC 4945
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| NGC 4945 | |
 |
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| Observation data (J2000 epoch) | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 05m 27.5s[1] |
| Declination | -49° 28′ 06″[1] |
| Redshift | 563 ± 3 km/s[1] |
| Distance | 11.7 Mly (3.6 Mpc)[2] |
| Type | SB(s)cd[1] |
| Apparent dimensions (V) | 20′.0 × 3′.8[1] |
| Apparent magnitude (V) | 9.3[1] |
| Other designations | |
| PGC 45279[1] | |
| See also: Galaxy, List of galaxies | |
NGC 4945 is a barred spiral galaxy in the constellation Centaurus. It is thought to be quite similar to the Milky Way Galaxy, but X-ray observations show that NGC 4945 has an unusual, energetic, Seyfert 2 nucleus that might house a large black hole. It was discovered by James Dunlop in 1826.
[edit] Galaxy group information
NGC 4945 one of the brightest galaxies within the Centaurus A/M83 Group, a large, nearby group of galaxies. The galaxy is the second brightest galaxy within the subgroup centered on Centaurus A.[2][3]
[edit] External links
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Wikimedia Commons has media related to: - APOD: Nearby Spiral Galaxy NGC 4945 (7/21/02)
[edit] References
- ^ a b c d e f g NASA/IPAC Extragalactic Database. Results for NGC 4945. Retrieved on 2006-11-25.
- ^ a b I. D. Karachentsev, M. E. Sharina, A. E. Dolphin, E. K. Grebel, D. Geisler, P. Guhathakurta, P. W. Hodge, V. E. Karachentseva, A. Sarajedini, P. Seitzer (2002). "New distances to galaxies in the Centaurus A group". Astronomy and Astrophysics 385: 21–31. doi:.
- ^ I. D. Karachentsev (2005). "The Local Group and Other Neighboring Galaxy Groups". Astronomical Journal 129: 178–188. doi:.
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