Right ascension 01 43.1 Distance 7,045 ly (2,160 pc) Apparent dimensions (V) 4.2′ | Declination +64° 02′ Apparent magnitude (V) 8.2 Estimated age 10 ± 5 myr | |
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.
References
NGC 637 Wikipedia(Text) CC BY-SA