BVRI Standardization of the CCD Photometric System of Sobaeksan Optical Astronomy Observatory

Details BVRI Standardization of the CCD Photometric System of Sobaeksan Optical Astronomy Observatory BVRI Standardization of the CCD Photometric System of Sobaeksan Optical Astronomy Observatory

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jass...25...87j&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 25, no. 2, 087-100

Astronomy and Astrophysics

Astronomy

Ccd Observations, Bvri Standardization

Scientific paper

A total of 792 CCD images of V523 Cas were obtained on four nights of Jan. 2003 with the BVRI CCD photometric system attached to a 61cm reflector of Sobaeksan Optical Astronomy Observatory (SOAO). The 17 standard stars in the images were used to establish transformation relations between our BVRI system and the standard Johnson-Cousins BVRI system. We derived the tentative equations of transformation between two photometric systems as follows;
V = v-0.0689(B-V)+0.0063
B-V = 1.3197(b-v)-0.1733
V-R = 0.9210(v-r)-0.1309
R-I = 0.8892(r-i)-0.1055.
Using these equations standard V magnitudes and their color indexes (B-V, V-R, R-I) for 57 stars in the field of the image were determined.

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