New times of minimum and a period study for GO Cygni

Details New times of minimum and a period study for GO Cygni New times of minimum and a period study for GO Cygni

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990japa...11..271h&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 11, Sept. 1990, p. 271-275.

Astronomy and Astrophysics

Astrophysics

12

Eclipsing Binary Stars, Stellar Magnetic Fields, Astronomical Photometry, Cygnus Constellation, Light Curve, Periodic Variations

Scientific paper

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.

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