NGC 637
From Infogalactic: the planetary knowledge core
| NGC 637 | |
|---|---|
| Observation data (J2000.0 epoch) | |
| Right ascension | 01h 43.1m[1] |
| Declination | +64° 02′[1] |
| Distance | 7,045 ly (2,160 pc)[1] |
| Apparent magnitude (V) | 8.2[2] |
| Apparent dimensions (V) | 4.2′[3] |
| Physical characteristics | |
| Estimated age | 10 ± 5 myr[3] |
| Other designations | NGC 637, Collinder 17[2] |
NGC 637 is an open cluster of stars in the constellation Cassiopeia. It has a Trumpler classification of I2m and an angular diameter of 4.2′. At a distance of approximately 7,045 light years, this corresponds to a diameter of 9.8 light-years (3.0 pc). The estimated age of this cluster is 5–15 million years.[3][1]
References
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