Astronomy:NGC 740
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Short description: Galaxy in the constellation Triangulum
| 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] |
| Helio 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
- ↑ 1.0 1.1 1.2 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S.
- ↑ 2.0 2.1 2.2 2.3 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. doi:10.1086/510201. Bibcode: 2007ApJ...655..790C.
- ↑ de Vaucouleurs, G. et al. (1991). Third reference catalogue of bright galaxies. 3.9. New York: Springer-Verlag.
- ↑ "NGC 740". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+740.
- ↑ Rojas, Sebastián García. "Galaxy NGC 740 - Barred Spiral Galaxy in Triangulum Constellation" (in en). https://telescopius.com/deep-sky/object/1635/ngc-740/galaxy?fromdsobrowser.
- ↑ "DOCdb - NGC 740". http://www.docdb.net/show_object.php?id=ngc_740.
- ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=ngc+740&img_stamp=YES.
External links
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