CK AQR TIME KEEPING. EVIDENCE FOR A THIRD BODY
- 1 January 2020
- journal article
- Published by Masaryk University Press in Open European Journal on Variable stars
- No. 209,p. 1-8
- https://doi.org/10.5817/oejv2020-0209
Abstract
Photometric measurements of the contact binary system CK Aqr are presented. 49 new times of minimum were obtained between 2005 and 2020. Along with already published observations, this allows the derivation of an improved ephemeris. The resulting O-C diagram shows oscillations which are interpreted as the light time travel effect due to a third component, with a period of 8.2 years.Keywords
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