NGC 657 is an open cluster containing very few stars or a group of stars located in the constellation Cassiopeia. It was discovered by British astronomer John Herschel in 1831.[3][4]
| NGC 657 | |
|---|---|
 NGC 657 Credit: Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Right ascension | 1h 43m 23.76s[1] |
| Declination | 55° 50m 24s[1] |
| Distance | 6308 ly (1934 pc[1]) |
| Physical characteristics | |
| Estimated age | ~1 Gyr[1] |
| Other designations | C 0140+556, MWSC 135[2] |
| Associations | |
| Constellation | Cassiopeia |
See also
editReferences
edit- ^ a b c d Kharchenko, N. V.; Piskunov, A. E.; Schilbach, E.; Röser, S.; Scholz, R.-D. (2013). "Global survey of star clusters in the Milky Way". Astronomy & Astrophysics. 558: A53. arXiv:1308.5822. Bibcode:2013A&A...558A..53K. doi:10.1051/0004-6361/201322302.
- ^ "NGC 657". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-23.
- ^ Ford, Dominic. "The open cluster NGC 657 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-04-05.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-04-05.
External links
edit
Media related to NGC 657 at Wikimedia Commons
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