Photographic Studies of Neglected Variables, II: MO Aurigae, RY Canis Minoris, HI Geminorum, OO Puppis, and OP Puppis

Volume 24 number 2 (1996)

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David B. Williams

9270-A Racquetball Way

Abstract

Observations on Harvard patrol plates have been used to determine new or improved periods for the poorly studied eclipsing binaries MO Aur, RY CMi, and HI Gem and the Cepheid variable OO Pup. OP Pup is a previously unrecognized Cephied with a period of 2.6 days.