CCD Images
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Procedure for taking CCD images

For take CCD images you need some software. We work with CCDOPS - a program which is connected to our SBIG ST6 on Newton 0.4m, f/4.3 and software for  telescope navigation (this program was made by the TEG) which will help us find galaxies and supernova stars.

With the navigation program we can find objects via its RA&DEC, and on the CCD we can pick the filter (red, blue or visual). Then we take CCD frames with the CCDOPS program. After taking images we need to do some calibration, like a flat field. For this calibration we use the flat field images that the NEO group prepared. On the flat-fielded CCD images we do measurements of the supernova - we determine RA, DEC and magnitude with Astrometrica computer program by Herbert Raab. First we make a map with Astrometrica which coresponds to our CCD images and determine reference stars. After that we mark the same stars on our CCD image. Then Astrometrica performs measurements of RA, DEC and magnitude. We save the acquired data in the Visnjan Observatory database of images.

Vibor Jelic

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