New times of minimum and a period study for GO Cygni.
Abstract
Times of minimum derived from photometry obtained in 1963, 1967, 1978, and 1979 are presented. With these and previously published times, the period is studied. A constant period increase (quadratic ephemeris) represents most of the times but there was a period decrease in 1934 and possibly in 1984. A 50-year magnetic cycle is discussed.
- Publication:
-
Journal of Astrophysics and Astronomy
- Pub Date:
- September 1990
- DOI:
- 10.1007/BF02709276
- Bibcode:
- 1990JApA...11..271H
- Keywords:
-
- Eclipsing Binary Stars;
- Stellar Magnetic Fields;
- Astronomical Photometry;
- Cygnus Constellation;
- Light Curve;
- Periodic Variations;
- Astrophysics