ccd photometry using multiple comparison stars
Clicks: 140
ID: 159344
2004
The accuracy of CCD observations obtained at the Korean 1.8 m telescope has been studied. Seventeen comparison stars in the vicinity of the cataclysmic variable BG CMi have been measured. The ``artificial" star has been used instead of the ``control" star, what made possible to increase accuracy estimates by a factor of 1.3-2.1 times for ``good" and ``cloudy" nights, respectively. The algorithm of iterative determination of accuracy and weights of few comparison stars contributing to the artificial star, has been presented. The accuracy estimates for 13-mag stars are around 0.002 m mag for exposure times of 30 sec.
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kim2004journalccd
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Authors | ;Yonggi Kim;Ivan L. Andronov;Young-Beom Jeon |
Journal | the journal of supercritical fluids |
Year | 2004 |
DOI | 10.5140/JASS.2004.21.3.191 |
URL | |
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