Star field around NGC6556

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This is the first shot taken using my new coma corrector + adaptors! There is still some distortion around the outer edges of the image, but it’s a much flatter field compared to before.

This is a stack of twenty 5 minute exposures, but no dark/flat/bias frames were used. I have to take new flats since I’m now using the coma corrector, and I haven’t been able to take any darks at a cool enough temperature yet.

  • Date: 05/06/2014
  • Location: Adelaide, South Australia
  • Camera: Canon 450d, modded with IR filter removed
  • Mount: HEQ5PRO
  • Scope: GSO 8″ f/5 Newtonian
  • Autoguider: Orion Starshoot AG

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