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2021JAVSO..49...58P - J. Am. Assoc. Variable star obs., 49, 58 (2021)
Refining Ephemeris and Estimating Period Change Rate for V965 Cephei.
PYATNYTSKYY M.
Abstract (from CDS):
Using observations from the AAVSO International Database, data from the literature, and new photometry from the current investigation, the author has produced an O-C diagram for the HADS star V965 Cephei for the time interval September 2011 through December 2020. Analysis of the O-C diagram revealed that V965 Cep has been increasing its period at a constant rate (1/P) (dP/dt) of 1.02 (8) x 10<SUP>-6<SUP> yr<SUP>-1<SUP>. A refined ephemeris for the star: Tmax (HJD) = 2457504.8963(2) + 0.085067421(9) E + 1.01(8) x 10<SUP>-11<SUP> E2.
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Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.
Simbad objects: 1
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