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R.A. Matson (Indiana U. and U. Denver), P.B. Van Stockum (Indiana U. and Princeton U.), C.P. Deliyannis (Indiana U.), A. Sarajedini (U. Florida), I. Platais (Johns Hopkins)
We present refined basic parameters of the canonical metal-poor open cluster NGC 2420. Observations were made using the S2KB CCD during November 2004 at the WIYN 0.9m telescope. Photometry was performed using DAOPHOT, allowing for spatially-dependent point-spread-functions and aperture corrections. Using color-color and color-magnitude diagrams, we determine the cluster's reddening, metallicity, distance, and age. We compare these results with those for another canonical metal-poor open cluster, NGC 2506 (see Van Stckum et al poster). This work falls under the auspices of the WIYN Open Cluster Study (WOCS), a collaboration between Indiana University, Yale University, the University of Wisconsin, and the National Optical Astronomical Observatory (NOAO). This work is supported by the National Science Foundation under Grants AST-1452975 (Indiana REU) and AST-0206202 (to CPD).
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.