AAS 205th Meeting, 9-13 January 2005
Session 22 Open Clusters Young and Old
Poster, Monday, January 10, 2005, 9:20am-6:30pm, Exhibit Hall

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[22.18] WIYN Open Cluster Study: UBVRI CCD Photometry of M34

J. L. Windschitl (St. Mary's U. of MN and Indiana U.), H. Gneiser (UW-Whitewater and Indiana U.), Constantine P. Deliyannis (Indiana U.), A. Sarajedini (U. Florida), I. Platais (Johns Hopkins U.)

M34 is a thoroughly studied open cluster on its way to becoming a fundamental WOCS cluster. We provide photometry of M34 in the U, B, V, R, and I filters in order to re-evaluate its fundamental properties. Observations were made on the WIYN 0.9m telescope on 17 January 2003 using a field of 20 20 on the S2KB CCD. PSF photometry was applied using DAOPHOT II and IRAF. We discuss the reddening and metallicity, which were derived using all of the U-B, U-V, U-R, and U-I vs B-V color-color diagrams. We also discuss the distance modulus and age, which were derived from application of Yale-Yonsei isochrones. This work has been supported by the National Science Foundation under Grants AST-0206202 (to CPD), AST-1039617 (REU site at Indiana U.) and by the National Space Grant College and Fellowship Program as a Wisconsin Space Grant Consortium undergraduate scholar (to HG).


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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.