CCD photometry of distant open clusters NGC 2425, Haffner 10 and Czernik 29

Details CCD photometry of distant open clusters NGC 2425, Haffner 10 and Czernik 29 CCD photometry of distant open clusters NGC 2425, Haffner 10 and Czernik 29

2005-10-10

arxiv.org/abs/astro-ph/0510274v1

Mon.Not.Roy.Astron.Soc.365:110-114,2006

Astronomy and Astrophysics

Astrophysics

5 pages, 9 figures, accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2005.09690.x

We present BVI photometry for poorly known southern hemisphere open clusters: NGC 2425, Haffner 10 and Czernik 29. We have calculated the density profile and established the number of stars in each cluster. The colour-magnitude diagrams of the objects show a well-defined main sequence. However, the red giant clump is present only in NGC 2425 and Haffner 10. For these two clusters we estimated the age as 2.5 +/- 0.5 Gyr assuming metallicity of Z=0.008. The apparent distance moduli are in the ranges 13.2<(m-M)_V<13.6 and 14.3<(m-M)_V<14.7, while heliocentric distances are estimated to be 2.9

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