Orion nebula M42 and De Marian's Nebula M43
Total Integration time: 10 hours, Filter Dual-Narrowband.
Sub-Frames taken in several nights, starting with 28. dec 2025. Not "the best nights" due to the moon - I know 🙄.
As my actual focus lies on the horsehead nebula, the orion nebula was done in between (better than nothing). As it is much brighter and at least the important red channel (H-alpha) of the Dual-Narrowband Filter is little affected of the moonlight, I decided to take photos anyway because of the clear sky.
Also this is my first project done with PixInsight - have still to learn and try a lot.
Technical Infos:
Telescope Skywatcher 200mm/1200mm (10" f/6). modified with 3D-printed secondary mirror holder with 3 spider vanes
Coma corrector: TS-Optics TSGPU
Filter: Optolong L-extreme, Dual Narrowband (H-Alpha, OIII)
Camera: ToupTek ATR2600C, cooled color Astrocam, Sensor APS-C (Sony IMX571C)
Mount: iOptron CEM70
Guiding: Guidescope TS-Optics 60/248 mm, ZWO ASI 662 MC
Control via Raspberry Pi (RaspiOS - Debian 13), Indi, KStars, PHD2
Image processing: PixInsight (+RC-Astro Plugins), RawTherapee, Gimp
#Orionnebel #OrionNebula #M42 #M43 #Astrophoto #Astrophotography #Astrofoto #Astrofotografie #DeepSky