Astronomy:NGC 645
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Short description: Galaxy in the constellation Perseus
| NGC 645 | |
|---|---|
 SDSS image of NGC 645 | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces |
| Right ascension | 01h 40m 08.698s[1] |
| Declination | +05° 43′ 36.18″[1] |
| Redshift | 0.011028[2] |
| Helio radial velocity | 3288 km/s[2] |
| Distance | 112.1 Mly (34.36 Mpc)[3] |
| Apparent magnitude (B) | 13.8[2] |
| Characteristics | |
| Type | SB:b[2] |
| Other designations | |
| UGC 1177, MCG+01-05-016, PGC 6172[2] | |
NGC 645 is a barred spiral galaxy in the constellation Pisces. It is estimated to be 112 million light-years from the Milky Way[3] and has a diameter of approximately 115,000 light years. The object was discovered on October 27, 1864 by astronomer Albert Marth.[4][5][6]
See also
References
- ↑ 1.0 1.1 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 2.4 "NGC 645". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+645.
- ↑ 3.0 3.1 Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal 152 (2): 21. doi:10.3847/0004-6256/152/2/50. 50. Bibcode: 2016AJ....152...50T.
- ↑ Ford, Dominic. "The galaxy NGC 645 - In-The-Sky.org" (in en). https://in-the-sky.org/data/object.php?id=NGC645.
- ↑ "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+645&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "Revised NGC Data for NGC 645". http://spider.seds.org/ngc/revngcic.cgi?NGC%20645.
External links
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