The Reduction of CCD Images for Stellar Photometry on the Vatt

Abstract

We briefly describe a method of organizing all the star field exposures taken in a complete CCD observational run. By a “CommandLog” (to be published in J. Astron. Data) one can organize all the observations and process them within IRAF in an orderly, automated manner to arrive at stellar photometry calibrated into a standard photometric system (in our case, Strömvil). During the course of this processing we determine the error of the flat and try to correct it.

Keywords

• techniques
• photometric
• ccd photometry
• reductions