Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis

Details Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis Photoelectric Observations of Close Binary AG Persei and its Apsidal Motion Analysis

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jass...13...63l&link_type=abstract

Journal of Astronomy and Space Science, vol. 13, no. 1, p.63-71.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

A total of 546 UBV photoelectric observations of AG Per was carried out from January to December in 1993 at Chungbuk National University Observatory. With our observations, UBV light curves were constructed, three minimum times of JDHel. 2449284.213, JDHel. 2449360.060, and JDHel. 2449363.192 were determined. The phase displacement of secondary minimum time ¥ä=-0.046 were determined and orbital eccentricity e=0.071 was calculated. Forty-five times of minimum light (including ours) were collected from the literature and plotted on O-C diagram. We analyzed these data and apsidal motion period of U=76.17 (years) was obtained. Using e and U for AG Per, the internal structure constant, log k2, was found to be -2.13.

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