New Periods for Two W Virginis Type Variables

Volume 8 number 2 (1979)

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Melanie Mitchell

Maria Mitchell Observatory,

Abstract

Brightness estimates of V377 Sgr and V741 Sgr, two W Virginis type variables, were made for 650 Nantucket plates. Variations in the period of V377 Sgr were discovered and four new sets of elements were given to satisfy observations made over four separate intervals of time. A newly refined period is given for V741 Sgr.