Astrobin: https://www.astrobin.com/w1825m/C/ M29 region in narroband, Sii Ha and Oiii+Hb; Hydrogen Beta records I used to integrate Oxigen channel. Setup is: William Optics Redcat 51…
View More M29 (NGC 6913) region in SHO and Hb羞龍天文摄影 Xiulong Astrophotography
Xiulong Tianwen Sheying – Astrophotography by 羞龍Xiulong Stefano Zamblera