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 ascension1h 43m 23.76s[1]
Declination55° 50m 24s[1]
Distance6308 ly (1934 pc[1])
Physical characteristics
Estimated age~1 Gyr[1]
Other designationsC 0140+556, MWSC 135[2]
Associations
ConstellationCassiopeia
See also: Open cluster, List of open clusters

See also

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References

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  1. ^ 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.
  2. ^ "NGC 657". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-23.
  3. ^ Ford, Dominic. "The open cluster NGC 657 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-04-05.
  4. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-04-05.
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  •   Media related to NGC 657 at Wikimedia Commons