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| NGC 740 (Vale Severis) | |
|---|---|
 NGC 740 imaged by the Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Triangulum |
| Right ascension | 01h 56m 54.867s[1] |
| Declination | +33° 00′ 54.63″[1] |
| Heliocentric radial velocity | 4,518[2] km/s |
| Distance | 198.9 Mly (60.98 Mpc)[2] |
| Apparent magnitude (B) | 14.9 |
| Characteristics | |
| Type | SBb?[3] |
| Mass | 2.48×1012[2] M☉ |
| Size | 1,100 kly[2] |
| Apparent size (V) | 1.017′ × 0.264′[1] |
| Other designations | |
| UGC 1421, MCG +05-05-031, PGC 7316[4] | |
NGC 740 is a barred spiral galaxy located in the Triangulum constellation. It is estimated to be 210 million light-years from the Milky Way and has a diameter of about 85,000 light-years. It was discovered by the Irish engineer Bindon Stoney, an assistant to William Parsons.[5][6][7]
References
[edit]- ^ a b c 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 Crook, Aidan C.; et al. (February 2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. S2CID 11672751.
- ^ de Vaucouleurs, G.; et al. (1991). "Third reference catalogue of bright galaxies". 3.9. New York: Springer-Verlag.
{{cite journal}}: Cite journal requires|journal=(help) - ^ "NGC 740". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-01-13.
- ^ Rojas, Sebastián García. "Galaxy NGC 740 - Barred Spiral Galaxy in Triangulum Constellation". Telescopius. Retrieved 2019-12-09.
- ^ "DOCdb - NGC 740". www.docdb.net. Retrieved 2019-12-09.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2019-12-09.
External links
[edit]
Media related to NGC 740 at Wikimedia Commons
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