NGC2099 (M73) IC439
17 lights at 600sec, ISO400, UHC 2″ filter by Optolong: 14/12/2020
Astrobin: https://www.astrobin.com/z8ubnf/
Astrometry: http://nova.astrometry.net/user_images/4229245#annotated
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Astroberry Server,
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Canon EOS550d Full Spect. IRcut,
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IC439,
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NGC2099,
PHD2,
QHY5II-L C,
Stars,
UHC Optolong,
William Optics Zenithstar 61 f/5.9 APO Refractor 2018,
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