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

• List of NGC objects (1–1000)

References

1. 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.
2. "NGC 550". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-05-15.
3. "Results for object NGC 0550 (NGC 550)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-05-15.
4. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-22.
5. "Revised NGC Data for NGC 550". spider.seds.org. Retrieved 2020-03-22.
6. Ford, Dominic. "The galaxy NGC 550 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-22.
7. 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 .
8. "SN 1961Q". Transient Name Server. IAU . Retrieved 30 November 2024.

External links

• Media related to NGC 550 at Wikimedia Commons