UBV light curves of the eclipsing binary RS Cephei

Details UBV light curves of the eclipsing binary RS Cephei UBV light curves of the eclipsing binary RS Cephei

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..559h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, April 1984, p. 559-561.

Astronomy and Astrophysics

Astronomy

8

Astronomical Photometry, Eclipsing Binary Stars, Light Curve, Ubv Spectra, Companion Stars, Stellar Envelopes

Scientific paper

Differential UBV photometry of the long period Algol-type eclipsing binary RS Cephei obtained on 61 nights from November 1965 through February 1972 at Kitt Peak National Observatory and Dyer Observatory is presented. For the comparison star BD+80 deg 159, V = 8.62 m, B = 8.96 m, and U = 8.96 m. Primary eclipse depths measured from external contact are 1.55 m in V, 2.35 m in B, and 2.90 in U. Eclipse durations are D = 0.09 P = 27 h and d = 0.04 P = 12 h. A circumstellar disk surrounding the hotter star causes the light to be depressed before and after the external contacts of primary eclipse and causes totality in the U light curve to appear partial.

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