Magnitudes and Colors in NGC 752.
Abstract
Magnitudes and colors have been measured in the galactic cluster NGC 752, for 94 stars, of which 35 are, from proper motions, almost certain to be physical members of the cluster. The color-magnitude diagram for the cluster is presented. The cluster does not appear to contain a main sequence. The distance modulus, based on the four giant stars, is 7.5 + 0.3 (p.e.) mag. A correlation of the ultraviolet intensity with absolute magnitude seems to exist in the F-type cluster members.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1953
- DOI:
- 10.1086/145699
- Bibcode:
- 1953ApJ...117..356J