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.

目的のTargetが出てくるまでの待時間に赤と青のコントラストが綺麗そうだったので撮影してみた。さそり座のColour Complexの一部である。

3等星のAlniyatが明るく青い星雲が隠れてしまった。

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

Gain: 10、BIN1

CCD: QHY183C

Mount :iOptron CEM70G

Guide: SVBony 60mm F/4, QHY290C

Controler:NINA,PHD2

Pre-Processing APP

Post-Processing PI,PS

Shot By Taro Seki Astropical.uk