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| from Herbert Hamber Andromeda galaxy M31 in the constellation Andromeda Total exposure time ~5 hrs, 30sec subs. Natural colors (no filters). Photometric color calibration to avoid garish circus colors. No guiding, no gadgets, optical polar alignment, manual focus with Bahtinov mask. Images stacked in DSS and edited in Siril, Gimp and PSE (all free). In Borrego Springs Calif. 📷 𝗜𝗺𝗮𝗴𝗶𝗻𝗴 𝗦𝗲𝘁𝘂𝗽 • 𝗧𝗲𝗹𝗲𝘀𝗰𝗼𝗽𝗲: SvBony SV550 80mm • 𝗖𝗮𝗺𝗲𝗿𝗮: Touptek Sony IMX571 26 Mp color camera • 𝗠𝗼𝘂𝗻𝘁: Celestron AVX mount |

