Analysis of AC Comae Berenices

Volume 20 number 1 (1991)

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Leith E. Dwyer

Maria Mitchell Observatory, Nantucket, MA 02554

Abstract

New elements for AC Comae Berenices, an RRab star, are based on data taken from MMO plates from 1965 to 1990: JD_max = 2443883.819 + 0.5908939 E - 3.7 x 10^-10 E^2. These elements alaso satisfy published data from 1963 to 1966. The photographic range is 14.4 - 16.0, using updated magnitude measures for the local comparison sequence.