BVRI Photometry of VV Cephei
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 sam...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Space Science Society
1992-06-01
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| Series: | Journal of Astronomy and Space Sciences |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1992/v9n1/OJOOBS_1992_v9n1_89.pdf |
| Summary: | 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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| ISSN: | 2093-5587 2093-1409 |