Photoelectric photometry of the eclipsing binary MM Herculis Preliminary results

Details Photoelectric photometry of the eclipsing binary MM Herculis Preliminary results Photoelectric photometry of the eclipsing binary MM Herculis Preliminary results

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.108..113e&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 108, no. 1, Jan. 1985, p. 113-123.

Astronomy and Astrophysics

Astrophysics

9

Astronomical Photometry, Eclipsing Binary Stars, Electrophotometry, Light Curve, Stellar Color

Scientific paper

The RS CVn-type eclipsing binary star MM Her has been observed in two colours, B and V, in 1979, 1980, and 1983. Several minima times were obtained during the observations and new light elements calculated. The light curves of the system obtained in blue and yellow lights show a significant wave-like distortion which migrates towards the decreasing orbital phases. Its migration period was estimated to be about 3.5 yr. The amplitudes of the wave-like distortion in B and V appear to change each year. The primary minimum of the system is a total eclipse with a duration of 0d.08.

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