WIYN Open Cluster Study: Precision UBVRI CCD Photometry of the Open Cluster NGC 1817

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present UBVRI CCD photometry of the open cluster NGC 1817. Data were taken with the WIYN 0.9m telescope on a photometric night and were calibrated using Landolt fields taken on the same night. Besides the central field, a wider 2x2 montage of fields was taken to identify members outside the central core of the cluster. We present revised cluster parameters of reddening, metallicity, distance and age. This is part of the ongoing WOCS photometric survey of this cluster. Our results include new photometric members and provide an independent calibration of the magnitude scale reducing the systematic errors in the stellar magnitudes and cluster parameters.

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