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