CCD BVRI photometry of the open clusters NGC 7142 and NGC 2281
Abstract
Photometry of stars up to 17 mag in the field of the open clusters NGC 7142 and NGC 2281 in BVRI filters was performed to search for new short-term variable stars. Seventeen variable stars were found using robust median statistics and 18 were suspected to be variable. We separated probable cluster members using proper motions from UCAC3 and our photometric diagrams. Also we used our BVRI photometry and JHK photometry from 2MASS to improve age and reddening for the clusters.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 2015
- Bibcode:
- 2015MmSAI..86..352P
- Keywords:
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- open clusters and associations: general;
- stars: variables: general;
- techniques: photometric