期刊
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
卷 146, 期 1, 页码 169-177出版社
E D P SCIENCES
DOI: 10.1051/aas:2000266
关键词
methods : observational; techniques : photometric; stars : general
A list of G81 UBVRI secondary standard stars for CCD photometry is presented. Visual magnitude ranges from 9.7 to 19.4, and the B - V colour index varies from 1.15 to 1.97. The stars are grouped into 11 different fields, each of them is generally observable in a single CCD frame. The stars are located near Landolt UBVRI equatorial standards, accessible to telescopes in both hemispheres, and mainly within the 5 - 8 hours range of right; ascension. Photometry, equatorial coordinates and finding charts are provided.
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