The contrast between red and blue seemed beautiful during the waiting time until the desired Target appeared, so I took a picture. It is part of Scorpio's Color Complex.
The third magnitude star Alniyat was bright and the blue nebula was hidden.
Place: Backyard East Pattaya (Bortle Class 6, Moon Phase 0.7％)
Shot Date:29th / Jul / 2022 21:13 (UTC+7)
Celestron C11 HyperStar C11 (2800mm F/1.9 f/540mm)
filter: IDAS NBZ
NBZ 14X180Secs 42minutes
Total 42 minutes
Palette: Target : L(Syn)-HOO
Mount :iOptron CEM70G
Guide: SVBony 60mm F/4, QHY290C