NGC 1961 group data recorded between 23/09/2021 and 06/12/2021 with William Optics Redcat 51 and ASI1600mm Pro at -20C, LRGB subframes with 60sec. exposure, Ha…
View More NGC1961 and group study draft notes羞龍天文摄影 Xiulong Astrophotography
Xiulong Tianwen Sheying – Astrophotography by 羞龍Xiulong Stefano Zamblera