2 plates mosaic for this region of Cygnus.Hbeta narrowband channel I used to integrate Oiii data. Astrobin: https://www.astrobin.com/h4nkm8/B/
View More Caldwell 27 and Sadr region mosaic in SH Oiii and Hb
Caldwell 27 (NGC 6888) region in SHO and Hb
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