NGC 645
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]
| 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] | |
See also
References
- Skrutskie, M.; et al. (2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708.
- "NGC 645". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-20.
- Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. 50.
- Ford, Dominic. "The galaxy NGC 645 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-04-03.
- "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-04-03.
- "Revised NGC Data for NGC 645". spider.seds.org. Retrieved 2020-04-03.
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