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2000JAVSO..28..149Z - J. Am. Assoc. Variable star obs., 28, 149-156 (2000/June-0)
Shutter mapping correction for short CCD exposures.
ZISSELL R.E.
Abstract (from CDS):
Short exposures taken by CCD cameras with mechanical shutters can give field stars measurably different exposure times as a function of the position of the star in the field. For accurate photometry, the images need to be corrected for this error. The methods and formulas for correction are presented with an example of the significance of the correction.
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Simbad objects: 2
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