V894 Cygni: Analysis and Interpretation of Variability

Volume 16 number 2 (1987)

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James D. Fahn

Maria Mitchell Observatory,

Abstract

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