Astrokit-an efficient program for high-precision differential CCD photometry and search for variable stars

  title={Astrokit-an efficient program for high-precision differential CCD photometry and search for variable stars},
  author={Artem Burdanov and Vadim Krushinsky and Alexander Popov},
  journal={Astrophysical Bulletin},
Having a need to perform differential photometry for tens of thousands stars in a several square degrees field, we developed Astrokit program. The software corrects the star brightness variations caused by variations of atmospheric transparency: to this end, the program selects for each star an individual ensemble of reference stars having similar magnitudes and positions in the frame. With ten or more reference stars in the ensemble, the differences between their spectral types and the… 
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