The new light curves and period study of AK Herculis

Details The new light curves and period study of AK Herculis The new light curves and period study of AK Herculis

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.136...63t&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 136, no. 1, Aug. 1987, p. 63-76. Research supported by the Scientific and

Astronomy and Astrophysics

Astrophysics

10

Eclipsing Binary Stars, Light Curve, Variable Stars, Astronomical Photography, Double Stars, Minima

Scientific paper

B and V observations of the W Ursae Majoris-type eclipsing variable system AK Her were made on five nights at the Ege University Observatory. Several times of minima were obtained during the observations and the new light elements were calculated. The light-time period was found to be about 75.72 years. The light curve of the system appears to change in each cycle for both colours. The secondary minimum of the system seems to be a total eclipse with a duration of about 42m.5.

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