UBV photometry of NGC 2439.
Abstract
Photoelectric and photographic measures of 183 stars in the field of NGC 2439 show the cluster to be 2 x 10 years old and 4.45 kpc from the Sun. Three supergiant stars, including the GO Ia star R Puppis, are found to be very probable members on the basis of photometric, spectral, and radial-velocity data. An extended group of high-luminosity B stars may also be associated with the cluster. Subject headings: luminous stars - open clusters - stars, individual
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1975
- DOI:
- 10.1086/153488
- Bibcode:
- 1975ApJ...197...67W