天文人的聖誕樹是長在天上的🤣 🎄🎄🎄 ——————————————— 拍攝器材 Equipment Camera: ZWO ASI533mc-pro Telescope:William Optics Zenithstar 73 APO Mount: iOptron GEM28 Filter: Askar Colour magic C1(Ha+OIII) ——————————————— 相片參數 EXIF C1(Ha+OIII):600*38 Dark:10 Flat:10 Bias:30 Process: Pixlnsight ,Photoshop