New Minima timings for V1010 Ophiuchi

Volume 15 number 2 (1986)

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David B. Williams

9270-A Racquetball Way,

Russell E. Milton

L. Pazzi

Rick Wasson

Sunset Hills Observatory,

Abstract

In 1982, minima of the short-period eclipsing binary V1010 Ophiuchi were found to occur more than 2.5 hours earlier than predicted by the light elements in the 3rd edition of the General Catalog of Variable Stars (GCVS). Twenty-six visual and photoelectric times of mid-eclipse during 1982-1986 are reported. O-C residuals from revised light elements in the 4th edition of the GCVS remain significant, and improved elements by Williams and Guinan are noted. The observations also indicate a time-keeping or calculating error in the times of minima given by Hamdy et. al. in IBVS 2818.