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1987JAVSO..16..107F - J. Am. Assoc. Variable star obs., 16, 107-110 (1987/December-0)
V894 Cygni: analysis and interpretation of variability.
FAHN J.D.
Abstract (from CDS):
New elements for a constant period, as well as for a possible changing period, are given for the RR Lyrae (ab) star V894 Cygni. Linear elements are JD(max) = 2445650.561 + 0.57138542 E ±0.0011 ±0.00000008 Parabolic elements are: JD(max) = 2445650.566 + 0.57138667 E + 5.7 x 10e-11 E^2 ±0.004 ±0.00000072 ±2.0 x 10e-11
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