The variable RS Cassicpeiae (108.1904)

Abstract

The variability of this star was discovered by Madame Ceraski from plates made by Blakjo at Moscow, and was announced in A. N. No. 3953. The photographs indicated a variation from the ninth to the eleventh magnitude approximately. Observations by Miss Whitney at the Vassar College Observatory, A. N. No. 4050, confirmed the variation and gave a range in brightness of 9.m7 to 10.m4. The following provisional elements, based upon observations made here, were announced in Laws Observatory Bulletin No. 10. Min. = J.D.2417412.50 + 6.d298E, G.M.T. The present paper contains a revision these elements and a discussion of all the observations thus far obtained.