The Great Star Cluster in Hercules (ヘラクレス座の大球状星団)Messier 13

It was difficult to see the surrounding stars in two hours, probably because of the high humidity in the sky. A total of 4 hours integration, including an additional 2 hours for the collimation adjustment confirmation frame.

湿気が多い空のせいかなかなか2時間では周辺の星が見えてこないので、コリメーションの調整確認Frameの追加2時間も合わせて合計4時間のIntegration。

Place: Backyard East Pattaya (Bortle Class 6, Moon Phase 100.0%)
Shot Date 6th / May / 2023 02:07 (UTC+7) to 8th/May/2023 3 nights
TS RC10 Truss  (250mm,F/8.0,f/2000mm)
filter: SVbony RGB Filter set
R: 166X30Secs 83minutes
G: 166X30Secs 83minutes
B: 162X30Secs 81minutes

Total 4 hours 7 minutes

Palette: Target :RGB
Gain: 200 BIN2 Mono
CCD:ZWO294MM-Pro
Mount :iOptron CEM70G
Guide: SVBony 60mm F/4, QHY290C (Dithering every 5 shots)
Controler:NINA,PHD2
Pre-Processing APP  Drizlle None
Post-Processing PI,PS 
Shot By Taro Seki Astropical.uk

New-M13-Edit01-Finish
4 hours re-processing


M13_RGB-Edit01-Finish
4 hours


M13_RGB_UnlinkedST-Edit01-Finish
2 hours

M13_RGB_UnlinkedST-Edit01-Finish2
2 hours