Proper motions and CCD-photometry of stars in the region of the open cluster Trumpler 2
The Main Astronomical Observatory, Pulkovo, St. Petersburg, Russia e-mail: email@example.com
2 Observatório Nacional / MCT, Rio de Janeiro, RJ, Brazil
Accepted: 29 December 2005
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 mag in the area 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 magnitudes of all the stars in the investigated area was compiled. The selection of the cluster members within the region of 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 ( yr) and physical parameters of the cluster and append the catalogues of the proper motions and of the photometry of the stars.
Key words: open clusters and associations: individual: Trumpler 2
© ESO, 2006