- BVRI PHOTOMETRY OF VV CEPHEI
- BVRI PHOTOMETRY OF VV CEPHEI
- ㆍ 저자명
- Nha. Il-Seong,Im. Hong-Seo,Lee. Yong-Sam,Jeong. Jang-Hae
- ㆍ 간행물명
- 韓國宇宙科學會誌
- ㆍ 권/호정보
- 1992년|9권 1호|pp.89-96 (8 pages)
- ㆍ 발행정보
- 한국우주과학회
- ㆍ 파일정보
- 정기간행물|ENG| PDF텍스트
- ㆍ 주제분야
- 기타
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 coefficinets determined by a comparison star 20 Cap for B and V each night have been deduced a linear relation, $K_B$=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 variations of both long-term and short-term are found as for 90 days and 20 days, respectively.