xanthic Posted July 16, 2014 Share Posted July 16, 2014 (edited) The first clear sky I've been able to make use of for about 2 months! Carpe Noctis? I decided to try NGC7822, which sits between Cephus and Cassiopeia. It's a star forming region, with pillar of creation/elephant trunk structures. I managed to grab 3 hours worth of Hydrogen alpha.The Ha needs about double the data again I think and will hopefully get the OIII and SII channels for this region too. 12 x 900 Ha, 30 flats and 50 bias stacked in DSS. Deconvoluted in CCDSharp (need a better tool for this) and curves done in Paintshop Pro. 25 x 900 (6.25 hours). Much less grainy now Edited July 22, 2014 by xanthic Link to comment Share on other sites More sharing options...
oldfruit Posted July 16, 2014 Share Posted July 16, 2014 That is a lovely detailed image. A lot going on in there. Link to comment Share on other sites More sharing options...
Tweedledee Posted July 16, 2014 Share Posted July 16, 2014 That is lovely and an unusual one . I think you have the middle bit there called Sharpless 171 or Cedarblad 214. The whole of NGC7822 is several times bigger and spans about 3 degrees. That star cluster just left of middle is Berkeley 59 which is embedded in the nebula about 3000 light years away. Link to comment Share on other sites More sharing options...
red dwalf Posted July 16, 2014 Share Posted July 16, 2014 Very nicely done Link to comment Share on other sites More sharing options...
+RonC Posted July 17, 2014 Share Posted July 17, 2014 Nice one Leigh, like that a lot! One of my targets for late Summer! Link to comment Share on other sites More sharing options...
xanthic Posted July 18, 2014 Author Share Posted July 18, 2014 Thanks guys Link to comment Share on other sites More sharing options...
Sheila Posted July 18, 2014 Share Posted July 18, 2014 looking good Link to comment Share on other sites More sharing options...
xanthic Posted July 22, 2014 Author Share Posted July 22, 2014 Quick update - added more Ha data. Will try for oxygen next time around. Link to comment Share on other sites More sharing options...
Sheila Posted July 22, 2014 Share Posted July 22, 2014 thats getting better Link to comment Share on other sites More sharing options...
xanthic Posted July 23, 2014 Author Share Posted July 23, 2014 Thanks Sheila. I was wondering whether or not to go for more Ha subs but I'm itching to be able to create a colour image! Link to comment Share on other sites More sharing options...
Sheila Posted July 23, 2014 Share Posted July 23, 2014 I know it's tempting but get as much ha as you feel you can. Then the same Amounts of Sii and Oiii Link to comment Share on other sites More sharing options...
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