Astronomy:NGC 89
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Short description: Galaxy in the constellation Phoenix
| NGC 89 | |
|---|---|
 NGC 89 (bottom) surrounded by the other galaxies in Robert's Quartet | |
| Observation data (J2000 epoch) | |
| Constellation | Phoenix |
| Right ascension | 00h 21m 24.355s[1] |
| Declination | −48° 39′ 55.28″[1] |
| Redshift | 0.011074 ± 0.000067[2] |
| Distance | 144 ± 10 Mly (44.1 ± 3.1 Mpc)[3] |
| Apparent magnitude (V) | 14.18[3] |
| Characteristics | |
| Type | SB0/a pec[4] |
| Apparent size (V) | 0′.957 × 0′.459[1] |
| Other designations | |
| PGC 1374, ESO 194-G011 | |
NGC 89 is a barred spiral or lenticular galaxy, part of Robert's Quartet, a group of four interacting galaxies.
This member has a Seyfert 2 nucleus with extra-planar features emitting H-alpha radiation. There are filamentary features on each side of the disk, including a jet-like structure extending about 4 kpc in the NE direction. It may have lost its neutral hydrogen (H1) gas due to interactions with the other members of the clusters—most likely NGC 92.[4]
References
- ↑ 1.0 1.1 1.2 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S. https://ui.adsabs.harvard.edu/abs/2006AJ....131.1163S/abstract.
- ↑ Boselli, A. et al. (October 1996), "The molecular gas content of spiral galaxies in compact groups.", Astronomy and Astrophysics 314: 738–744, Bibcode: 1996A&A...314..738B.
- ↑ 3.0 3.1 "NED results for object NGC 0089". NASA/IPAC Extragalactic Database. Jet Propulsion Laboratory/California Institute of Technology. http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+89.
- ↑ 4.0 4.1 Presotto, V. et al. (December 2009), "SCG0018-4854: A young and dynamic compact group", Astronomische Nachrichten 330 (9–10): 988–990, doi:10.1002/asna.200911275, Bibcode: 2009AN....330..988P.
External links
- NGC 89
- NGC 89 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
00h 21m 24.3s, −48° 39′ 57″
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