BVRI Photometry of VV Cephei

Details BVRI Photometry of VV Cephei BVRI Photometry of VV Cephei

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jass....9...89n&link_type=abstract

Journal of Astronomy and Space Sciences, vol.9, no.1, p.89-96.

Astronomy and Astrophysics

Astronomy

Scientific paper

UBV observations of VV Cep were made in 1988-1992 as a part of the Ten-year Observing Program for Long Period Eclipsing Binary Stars (1982-1992) at Yonsei University Observatory. In addition to these the observations in the longer passbands in R and I are also made in the 1991-1992 season at the same observatory. Atmospheric extinction coefficient by a comparison star 20 Cep for B and V each night have been deduced a linear relation, kB = 0.159 + 1.066kV. In this paper, light curves of this star in BVRI passbands for the 1991-1992 season only are presented. Two periodic light variation of both long-term and short-term are found as for 90 days, respectively.

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