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CCD UBV(RI)C photometry of twenty open clusters

İnci Akkaya Oralhan,Yüksel Karataş,William J. Schuster,Raúl Michel,Carlos Chavarría

New Astronomy（2015）

Cited 11|Views29
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Abstract
•We publish a homogeneous set of the reddenings, distances and ages of 20 open clusters from CCD UBVRI photometry of SPMO.•Morphological ages are in good agreement with the isochrone ages of 12 clusters with red clump/giant candidates.•We do not find any metal abundance gradient and age–metallicity relation.
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Key words
(Galaxy:) open clusters and associations: general,Galaxy: abundances,Galaxy: evolution
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