A redetermination of the characteristics of open star clusters and the structure of the Galaxy
Abstract
To obtain the most extensive set of characteristics of open clusters of the Galaxy by a uniform method, a computer program is designed to estimate interstellar reddening, distances and ages of clusters based on UBV-photometry data. Characteristics of 94 young clusters are estimated, and the distribution of clusters in the galactic plane is considered. A pronounced age gradient is found across the Sagittarius spiral arm. Several examples of triple and double clusters are considered.
- Publication:
-
Astronomicheskii Zhurnal
- Pub Date:
- December 1990
- Bibcode:
- 1990AZh....67.1134L
- Keywords:
-
- Galactic Structure;
- Open Clusters;
- Computer Programs;
- Distance;
- Interstellar Extinction;
- Milky Way Galaxy;
- Stellar Evolution;
- Stellar Spectrophotometry;
- Ubv Spectra;
- Astrophysics