B, V, R, I light curves of the very short-period binary AD CANCRI

Details B, V, R, I light curves of the very short-period binary AD CANCRI B, V, R, I light curves of the very short-period binary AD CANCRI

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pasp...99.1298s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 99, Dec. 1987, p. 1298-1309.

Astronomy and Astrophysics

Astronomy

10

Astronomical Catalogs, Eclipsing Binary Stars, Light Curve, Stellar Magnitude, Ubv Spectra, Ephemerides, Stellar Spectrophotometry

Scientific paper

The very short-period eclipsing binary system AD Cnc was observed on three nights with the facilities at Kitt Peak National Observatory. Standard magnitudes have been derived for AD Cnc and for the check and comparison stars. The observations covering the eclipse portions of the light curve yielded five epochs of minimum light. An improved ephemeris is presented. The light curves, defined by 735 observations with both the B and R filter, 733 with the V filter, and 730 with the I filter, are fairly symmetric. The magnitude differences in the maxima are slightly more than the probable errors of the observations. The difference in the depths of the eclipse curves is small with the depth of the primary exlipse curve averaaging 0.4 m.

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