NGC3556 / M108, NGC3587 / M97

Astrobin: https://www.astrobin.com/267t4z/ Astrometry: http://nova.astrometry.net/user_images/4229587#annotated 21 lights ISO400 600sec with UHC Optolong 2″ filter, 14/12/2020 William Optics Zenithstar 61 APOCanon ESO 500d Full spectrum IR cutSkywatcher…

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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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