Andromeda Galaxy (M31) with the satellite galaxies M32 and M110

Equipment: SharpStar Askar FRA400 with 0.7 reducer (focal length 280 mm), ZWO ASI183MM Pro; Guiding: ZWO ASI174MM Mini and ZWO OAG; AsiAir Pro; iOptron CEM40EC; Filters Chroma. Exposures: Luminance 54×180″ (2h 42′) and 20×30″ (10′); red, green and blue, 10×300″ (50′) each; H-alpha 29×600″ (4h 50′). Total integration 10h 12′. Image processing using PixInsight.
Imaged from travel place near village Radibush (Bortle 3) at Aug 12 and 13, 2021, while the majority of H alpha exposures were taken at rooftop in Skopje city center (Bortle 8) at Aug 14, 2021.

Autore: Sasho Panov (sito)