Physical Parameter Determination of the δ Scuti Star V1719 Cygni
Publications of the Astronomical Society of the Pacific2002Vol. 114(792), pp. 214–223
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J. H. Peña, M. Paparó, R. Peniche, Mario Rodríguez‐Martínez, M. A. Hobart, C. De la Cruz, A. García-Cole
Abstract
New uvbyβ photoelectric photometry of the short‐period variable star V1719 Cygni (HD 200925) has been secured. A period analysis of these data and those reported in the literature has provided us with stable pulsation frequencies that fit all the available observations covering a time span of 20 yr. The frequencies determined are 3.7411556, 7.4823111, 11.2234667, and 4.6777749 cycles day−1 and of smaller amplitude 8.4189900 cycles day−1. It was found that this Population I star has log g around 3.1 and an effective temperature of 6750 K.