AAVSO: American Association of Variable Star Observers
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AR Herculis: Examination of Recent Behavior (Abstract)

Volume 20 number 1 (1991)

Marvin E. Baldwin
Butlerville, IN

Abstract

(Abstract only) Visual observation of 51 maxima of this RR Lyrae type star over a period of 1,800 days reveals a strong Blazhko effect and a major change of the fundamental period. New periods are determined for both the fundamental variation and for the secondary Blazhko variations.