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| NGC 2623 | |
|---|---|
 A Hubble Space Telescope (HST) image of NGC 2623 | |
| Observation data (J2000 epoch) | |
| Constellation | Cancer[1] |
| Right ascension | 08h 38m 24.10s[2] |
| Declination | +25° 45′ 01.00″[2] |
| Redshift | 0.01847[3] |
| Distance | 263 Mly (80.91 Mpc)[1] |
| Apparent magnitude (V) | 13.36[4] |
| Characteristics | |
| Type | SABsd[4] |
| Size | 196,000 ly[citation needed] |
| Apparent size (V) | 2.399' x 0.692'[4] |
| Notable features | Late stage of collision/merging |
| Other designations | |
| NGC 2623, PGC 24288, MCG+04-21-009, UGC 4509, Arp 243[5] | |
NGC 2623 (also known as ARP 243) is an interacting galaxy located around 263 million light-years away in the constellation Cancer. It was discovered on 19 January 1885 by French astronomer Édouard Jean-Marie Stephan.
Due to NGC 2623 being in the late stage of merging, the compression of the gas within the galaxy has led to a large amount of star formation, and to its unique structure of a bright core with two extending tidal tails.[6] NGC 2623 does not have an active galactic nucleus.
One supernova has been observed in NGC 2623: SN 1999gd (Type Ia, mag. 17.8), discovered on 24 November 1999.[7][8]
- ^ a b "Hubble Unravels a Twisted Cosmic Knot". NASA. 23 October 2017.
- ^ 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.
- ^ Adelman-McCarthy, J. K.; et al. (2009). "VizieR Online Data Catalog: The SDSS Photometric Catalog, Release 7". VizieR On-line Data Catalog. Bibcode:2009yCat.2294....0A.
- ^ a b c Gil de Paz, Armando; et al. (December 2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". The Astrophysical Journal Supplement Series. 173 (2): 185–255. arXiv:astro-ph/0606440. Bibcode:2007ApJS..173..185G. doi:10.1086/516636. S2CID 119085482.
- ^ "NGC 2623". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 23 September 2017.
- ^ "A glimpse of the future". www.spacetelescope.org. Retrieved 2019-10-27.
- ^ "NGC 2623, a pair of merging galaxies in Cancer". Anne's Astronomy News (in Dutch). 2014-03-15. Retrieved 2019-10-27.
- ^ "SN 1999gd". Transient Name Server. IAU. Retrieved 27 August 2024.