Astronomy:NGC 657
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Short description: Open cluster in the constellation of Cassiopeia
| NGC 657 | |
|---|---|
 NGC 657 Credit: Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Cassiopeia |
| 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] |
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]
See also
References
- ↑ 1.0 1.1 1.2 1.3 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. doi:10.1051/0004-6361/201322302. Bibcode: 2013A&A...558A..53K.
- ↑ "NGC 657". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+657.
- ↑ Ford, Dominic. "The open cluster NGC 657 - In-The-Sky.org" (in en). https://in-the-sky.org/data/object.php?id=NGC657.
- ↑ "Your NED Search Results". https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+657&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.
External links
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