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2001IBVS.5208....1W - IAU Inform. Bull. Var. Stars, 5208, 1 (2001/November-0)
Period change of ES Del.
WATANABE T.
Abstract (from CDS):
The period of ES Del, a Mira-type variable, was proposed to be 373.9 d. However, a different period of 509.6 d has been recently suggested. Nonlinear period change is proposed: 1949-1965, P = 509.6d in 1982-1999.
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