| NGC 657 | |
|---|---|
NGC 657
Credit: Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Right ascension | 1h 43m 23.76s[1] |
| Declination | 55° 50m24s[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: Open cluster, List of open clusters | |
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]
Media related to NGC 657 at Wikimedia Commons
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