Abstract
This paper is a continuation of a series, aiming to determine the main parameters of rarely or un-studied open star clusters using Near-IR JHK photometry. Cluster center coordinates, angular diameter, distances, reddening, age, and metallicity are estimated for 25 un-studied open clusters, most of them in the first quadrant. A morphological analysis of 2MASS database (the digital “Two Micron All Sky Survey”) has been used.
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