NGC 891
From Wikipedia, the free encyclopedia
| NGC 891 | |
 Spiral Galaxy NGC 891 |
|
| Observation data (J2000 epoch) | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 02h 22m 33.4s[1] |
| Declination | +42° 20′ 57″[1] |
| Redshift | 528 ± 4 km/s[1] |
| Distance | 27.3 ± 1.8 Mly (8.4 ± 0.5 Mpc)[2] |
| Type | SA(s)b?[1] |
| Apparent dimensions (V) | 13′.5 × 2′.5[1] |
| Apparent magnitude (V) | 10.8[1] |
| Other designations | |
| UGC 1831, PGC 9031[1] | |
| See also: Galaxy, List of galaxies | |
NGC 891 is an edge on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel in August 1783. The galaxy in a member of NGC 1023 group of galaxies in the Local Supercluster. It has a H II nucleus.[3]
Visually, the object is visible in small to moderate size telescopes as a faint elongated smear of light with a dust lane visible in larger apertures.
In 1999 the Hubble Space Telescope imaged NGC 891 in infrared, this image can be seen below.
[edit] See also
[edit] External links
- APOD: Interstellar Dust-Bunnies of NGC 891 (9/9/1999)
- HubbleSite NewCenter: Edge-On Spiral Galaxy NGC 891
- SEDS information on NGC 891
- NGC 891
[edit] References
- ^ a b c d e f g NASA/IPAC Extragalactic Database. Results for NGC 891. Retrieved on 2006-11-18.
- ^ J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore (2001). "The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances". Astrophysical Journal 546 (2): 681-693. doi:.
- ^ Ho, Luis C.; Filippenko, Alexei V. & Sargent, Wallace L. W. (October 1997), “A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies”, Astrophysical Journal Supplement 112: 315-390
 |
This galaxy-related article is a stub. You can help Wikipedia by expanding it. |
