NGC 550
| NGC 550 | |
|---|---|
 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] |
| Heliocentric 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
[edit]References
[edit]- ^ a b Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
- ^ a b c d "NGC 550". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-15.
- ^ a b c "Results for object NGC 0550 (NGC 550)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-05-15.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-22.
- ^ "Revised NGC Data for NGC 550". spider.seds.org. Retrieved 2020-03-22.
- ^ Ford, Dominic. "The galaxy NGC 550 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-22.
- ^ 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. Bibcode:1962PASP...74..215H. doi:10.1086/127790.
- ^ "SN 1961Q". Transient Name Server. IAU. Retrieved 30 November 2024.
External links
[edit]
Media related to NGC 550 at Wikimedia Commons
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