RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

W UMa Stars: Eclipsing Binaries
W UMa Stars: Light Curves
W UMa Stars: Ephemerides

How to Cite

Observations and period variation analysis of the W UMa type star SW Lac. (1993). Revista Mexicana De Astronomía Y Astrofísica, 25(1), 63-69. https://astronomia.unam.mx/journals/rmxaa/article/view/1993rmxaa..25...63p

Abstract

Recent photoelectric-photometric data of the W UMa system SW Lacertae are reported. From the times of minima obtained in the present paper and those found in the literature, linear, quadratic and harmonic ephemerides are derived; the residuals show that the period variation of this system is not strictly periodic.
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