Photoelectric observations and epochs of minimum light, SW Lacertae

Details Photoelectric observations and epochs of minimum light, SW Lacertae Photoelectric observations and epochs of minimum light, SW Lacertae

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pasp...92...92f&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 92, Feb.-Mar. 1980, p. 92-97.

Astronomy and Astrophysics

Astronomy

13

Eclipsing Binary Stars, Electrophotometry, Light Curve, Stellar Spectrophotometry, Astronomical Photometry, Periodic Variations, Stellar Magnitude

Scientific paper

The W Ursae Majoris-type eclipsing binary system 5W Lac was observed photoelectrically on four nights in 1977. A total of 300 B and V observations was obtained. One secondary and three primary eclipse curves are well defined, and four epochs of minimum light and an updated ephemeris are presented. A listing of all available photoelectric times of minimum light, along with a brief discussion of the period behavior of the system, is also given. Although the entire light curve is not defined, variations in the shape of the light curve are evident.

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