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PHOTOGRAPHIC PHOTOMETRY OF STARS IN NGC 457
DAVID O. M. JONES and A. A. HOAG
Publications of the Astronomical Society of the Pacific
Vol. 80, No. 476 (October 1968), pp. 531-543
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40676673
Page Count: 13
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The images of 171 stars in the field of the previously well-observed open cluster, NGC 457, have been measured using U, B and V plates obtained with the 84-inch reflector. The primary purpose of this work was to test the suitability of the telescope and iris photometer for photographic photometry and to provide material for use in developing machine reduction routines for handling measures of direct plates.
Publications of the Astronomical Society of the Pacific © 1968 The University of Chicago Press