SCYON Abstract

Received on April 11 2008

Variable Stars in the Field of the Open Cluster NGC 2204

AuthorsM. Rozyczka (1), J. Kaluzny (1), W. Krzeminski (2), and B. Mazur (1)
Affiliation(1) Nicolaus Copernicus Astronomical Center, Bartycka 18, 00-716 Warszawa, Poland
(2) Las Campanas Observatory, Casilla 601, La Serena, Chile
To appear inActa Astronomica 57, 323 (2007)
Links NGC 2204


We present the results of a variable stars search in the field of the old open cluster NGC 2204. Five new variables were found, four of them being eclipsing binaries. The sample includes a detached binary located at the turnoff, a W UMa-type system, and an interesting detached low-mass binary with a period of 0.45 d which, however, is a foreground object. We provide V-light curves and finder charts for all variables together with color-magnitude diagrams of the cluster. For four variables incomplete I-light curves are also provided.