Optik / Mount: 12″ACF f7, Alt-5 TeenAstroCamera / Filter: ZWO ASI 6200 MM Pro MonoAstrodon Ha, OIII 3,5 all 2bin Date 27.12.2022 The Medusa Nebula is a planetary nebula in the constellation of Gemini. It is also known as Abell 21 and Sharpless 2-274. It was originally discovered in 1955 […]
