SCYON Abstract

Received on March 31 2003

CCD BV photometry of the intermediate age open cluster Collinder 110

Authors	Angela Bragaglia and Monica Tosi
Affiliation	INAF - Oss. Astron. Bologna, via Ranzani 1, 40127 Bologna,Italy
Accepted by	Monthly Notices of the Royal Astronomical Society
Contact	angela@bo.astro.it / tosi@bo.astro.it
URL	http://arXiv.org/abs/astro-ph/0303662
Links	Collinder 110

Abstract

We present CCD BV photometry of the intermediate age open cluster Collinder 110, a nearby, scarcely populated, and poorly studied system. There is no literature information on the metallicity, so we tested several possibilities, and found a slight evidence of sub-solar abundances. Using the synthetic Colour - Magnitude Diagrams technique we estimate the following parameters: age between 1.1 and 1.5 Gyr, reddening 0.38 <~ E(B-V) <~ 0.45, distance modulus (m-M)o between 11.45 and 11.7 if the cluster metallicity is sub-solar.