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eJAAVSO

Tau Cassiopeiae: Not a Variable Star

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John R. Percy

Department of Astronomy, University of Toronto, Toronto, Ontario, Canada M5S 1A1

 

Abstract

 

Tau Cassiopeiae (K1IIIa) appears to be non-variable in light and velocity, despite published indications to the contrary. The origin and propagation of the claims of variability are relevant, in a broader context, to (1) the certification and documentation of stellar variability and (2) the nature of the more than 200 suspected K-giant variable stars in the Yale Catalogue of Bright Stars.

 

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