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CCD Photometry of the old open cluster NGC 7142
CRINKLAW G., TALBERT F.D.
<Publ. Astron. Soc. Pac. 103, 536 (1991)>
=1991PASP..103..536C
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ADC_Keywords: Clusters, open; Photometry, CCD
Keywords: open clusters: NGC 7142 - photometry - variable stars - galaxies
Abstract:
CCD B,V observations on the NGC 7142 (1950 position 21h44.7 +65d34')
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 M67 and NGC 188,
and a new distance-modulus is found to be (m-M)0 = 11.4 +/- 0.9