Astronomy:NGC 550
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| NGC 550 | |
|---|---|
| File:250px SDSS image of NGC 550 | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 01h 26m 42.560s[1] |
| Declination | +02° 01′ 20.52″[1] |
| Redshift | 0.019560[2] |
| Helio radial velocity | 5807 km/s[2] |
| Distance | 303.7 Mly (93.10 Mpc)[3] |
| Apparent magnitude (B) | 15.0[2] |
| Characteristics | |
| Type | SB(s)a?[3] |
| Other designations | |
| UGC 1021, MCG+00-04-146, PGC 5374[2] | |
NGC 550 is a spiral galaxy in the constellation Cetus. It is estimated to be about 300 million light-years from the Milky Way[3] and has a diameter of approximately 110,000 light years. The German-British astronomer William Herschel discovered it on 8 October 1785.[4][5][6]
One supernova has been observed in NGC 550: SN 1961Q (type unknown, mag. 17.2) was discovered by Milton Humason on 30 November 1961.[7][8]
See also
References
- ↑ 1.0 1.1 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.
- ↑ 2.0 2.1 2.2 2.3 "NGC 550". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+550.
- ↑ 3.0 3.1 3.2 "Results for object NGC 0550 (NGC 550)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=NGC%20550&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+550&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "Revised NGC Data for NGC 550". http://spider.seds.org/ngc/revngcic.cgi?NGC550.
- ↑ Ford, Dominic. "The galaxy NGC 550 - In-The-Sky.org" (in en). https://in-the-sky.org/data/object.php?id=NGC550.
- ↑ Humason, M. L.; Kearns, C. E.; Gomes, Alercio M. (1962). "The 1961 Palomar Supernova Search". Publications of the Astronomical Society of the Pacific 74 (438): 215. doi:10.1086/127790. Bibcode: 1962PASP...74..215H.
- ↑ "SN 1961Q". IAU. https://www.wis-tns.org/object/1961Q.
External links
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