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2017-01-21 alnitak try2
 
© Fabien COUTANT

2017-01-21 alnitak try2



Try 2 at all nebulas around alnitak, from heavy light-polluted skies oh home around Paris but with UHC filter.

Much better than try 1, thanks to number of subs, but still difficult to come, I suppose because of limited sensor depth. (or is it LP?). However some color is missing, had to use manual BV calibration in Regim to get something barely acceptable.

Capture: 101 good of 123 lights x 25s x 2500iso, 30 NG darks, Olympus E-PM1 with Skywatcher 130PDS on Celestron Nexstar SLT, Skywatcher ComaCorr and TS-UHC filter.

Processing: Regim, Fotoxx

Date: 2017-01-21

Place: suburbs 10km from Paris, France.

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© Fabien COUTANT
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Alt-Az / NoEQ DSO challenge

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