Evidence for starspots on DK Draconis /HR 4665/

Observations of the long-period RS CVn-type binary DK Dra from February through September 1978 are presented. Light variations appear to be quasisinusoidal with a period of 64.6 + or - 0.4 d, and cycle-to-cycle changes in the character of the light curve have most likely occurred. No evidence of H-a...

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Journal Title: Astronomical Journal Vol. 87; no. 6; pp. 893 - 898
Authors: Edward Guinan, J. L. Fragola, A. G. Weisenberger, W. C. Odonnell, S. Tomczuk, George McCook
Format: Article
Published: June 1982
Online Access: Full Text