Crescent Nebula region in Sii Ha and Oiii+Hb; Hydrogen Beta records I used to integrate Oxigen channel. William Optics Redcat 51 with ASI1600mm Pro, 180…
View More Caldwell 27 (NGC 6888) region in SHO and Hb羞龍天文摄影 Xiulong Astrophotography
Xiulong Tianwen Sheying – Astrophotography by 羞龍Xiulong Stefano Zamblera