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CCD photometry of RV rau stars. VII. EP lyrae |
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| Authors: | V. I. Burnashev B. A. Burnasheva A. A. Henden |
| Affiliation: | (1) Crimean Astrophysical Observatory (CrAO), pos. Nauchnyi, Crimea, 98409, Ukraine;(2) American Association of Variable Star Observers (AAVSO), 25 Birth St., Cambridge, MA 02137, USA |
| Abstract: | Photometric observations of the variable star EP Lyr were performed with a CCD photometer during the observing season of 2002. Analysis of these observations together with published data has confirmed the mean period of the main variability cycle P = 83.d248 over almost 100 years. The periodicity of the variations in the main cycle is investigated on the basis of O-C diagrams. The time scale of its variations ranges from 1–2 to 8–20 thousand days. |
| Keywords: | CCD photometry RV Tau stars EP Lyrae |
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