NGC 813 is a lenticular galaxy in the constellation Hydrus. It is estimated to be 390 million light-years from the Milky Way[3] and has a diameter of approximately 140,000 ly. NGC 813 was discovered on November 24, 1834, by the British astronomer John Herschel.[4][5]
| NGC 813 | |
|---|---|
 legacy surveys image of NGC 813 | |
| Observation data (J2000 epoch) | |
| Constellation | Hydrus |
| Right ascension | 02h 01m 36.113s[1] |
| Declination | −68° 26′ 20.99″[1] |
| Redshift | 0.027219[2] |
| Heliocentric radial velocity | 8049 km/s[2] |
| Distance | 386.5 ± 27.1 Mly (118.50 ± 8.30 Mpc)[3] |
| Apparent magnitude (B) | 13.84[2] |
| Characteristics | |
| Type | SAB(r)0/a:[3] |
| Other designations | |
| PGC 7692[2] | |
One supernova, SN 2020abzv (type Ia, mag. 16.6), was discovered in NGC 813 on 9 December, 2020.[6]
See also
editReferences
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 813". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-24.
- ^ a b c "Results for object NGC 0813 (NGC 813)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2020-05-24.
- ^ Ford, Dominic. "The galaxy NGC 813 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-23.
- ^ "Revised NGC Data for NGC 813". spider.seds.org. Retrieved 2020-03-23.
- ^ Transient Name Server entry for SN 2020abzv. Retrieved 24 March 2023.
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