NGC 5985. NGC5982 and NGC5981. This group of 3 galaxies lies in the constellation of Draco , I was using a ten inch f/4.8 reflector , a Vixen Atlux mount , PHD auto guiding and an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image. The total exposure times was 80 minutes using an IDAS filter, 15 minutes using a H-alpha filter , 15 minutes using an O111 filter and ten minutes using a blue filter.
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Combining old and new data
