Revised Elements. IV. R Pyxidis, RT Velorum, V Microscopii, WW Aquarii, RT Aquarii, and RT Octantis

Volume 18 number 1 (1989)

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Margaret G. Lysaght

AAVSO, 25 Birch Street,

Abstract

The Mira variables R Pyx, RT Vel, V Mic, WW Aqr, RT Aqr, and RT Oct, considered for the HIPPARCOS observing program, have been studied using the Harvard College Observatory photographic plate collection. Previously published elements have been revised.