Proper motions and CCD-photometry of stars in the region of the open cluster Trumpler 2
Abstract
The results of a complex study of the galactic open cluster Trumpler 2 are presented. In order to obtain the proper motions, the positions of approximately 3000 stars up to the limit magnitude B∼16.25 mag in the area 80 arcmin×80 arcmin around the cluster were measured on 6 plates with a maximal epoch difference of 63 years. The root-mean error of the relative proper motions is 4.2 mas yr-1. The catalogue of {BV} magnitudes of all the stars in the investigated area was compiled. The selection of the cluster members within the region of R<16 arcmin from the center of the cluster was made. Altogether, 148 stars were considered to be cluster members by both astrometrical and photometrical criteria. We present the estimated age (8.91×107 yr) and physical parameters of the cluster and append the catalogues of the proper motions and of the photometry of the stars.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- June 2006
- DOI:
- 10.1051/0004-6361:20042557
- arXiv:
- arXiv:astro-ph/0511553
- Bibcode:
- 2006A&A...451..901F
- Keywords:
-
- open clusters and associations: individual: Trumpler 2;
- Astrophysics
- E-Print:
- 14 pages, 7 figures