Magnitudes and colours of some members of the Perseus cluster

Vainu Bappu, M. K. (1954) Magnitudes and colours of some members of the Perseus cluster Monthly Notices of the Royal Astronomical Society, 114 (6). pp. 687-691. ISSN 0035-8711

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Official URL: http://adsabs.harvard.edu/abs/1954MNRAS.114..687V

Abstract

Photoelectric colours and magnitudes have been determined for twenty-five stars considered to be members of the moving cluster in Perseus. A distance modulus of 6m.83, corresponding to a distance of 230 ps, has been derived. This value is nearly twice the value of 120 ps derived by Miss Roman and Morgan from the upsilon component of proper motion.

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