Hey there,
The Sadr region is super rich in Ha, so many beautiful targets there. I am a real fan off black dustclouds, so i chose to shoot the butterfly nebula next to the star Sadr. I spent more time on OIII because the signal i was getting was really weak, the Ha signal was amazing so did not need much time. With these short “grey” summernights i was not expecting much, but i really love how it turned out.
This image is taken on 06/28/2022 and the 2 nichts before.
Telescope: Skywatcher Esprit 100ED
Camera: QHYCCD 163M
processing: Pixinsight
Baader H-alpha 7nm: 39×300″ (3h 15′)
Baader O-III 8.5nm: 93×300″ (7h 45′)
Baader S-II 8nm: 81×300″ (6h 45′)
Tot Exp.: 17u45min.
Greetings
Kristof Dabrowski