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CCD PHOTOMETRY OF THE OLD OPEN CLUSTER NGC 7142
GREG CRINKLAW and F. D. TALBERT
Publications of the Astronomical Society of the Pacific
Vol. 103, No. 664 (June 1991), pp. 536-545
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40679719
Page Count: 10
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CCD B, V observations of the NGC 7142 field reveal the presence of a single short-period variable star. The color-magnitude diagram of the field shows evidence for small-scale variable absorption across the face of the cluster. The age of NGC 7142 appears to be confirmed as intermediate between that of M 67 and NGC 188, and a new distance modulus is found to be (m-M)o = 11.4 ± 0.9.
Publications of the Astronomical Society of the Pacific © 1991 The University of Chicago Press