The Banana Nebula (バナナ星雲) SH2-188

Even when it's sunny, the humid sky makes the guide star blurry and the signal-to-noise ratio is not good.
But I wanted to capture something on a sunny day, so I aimed the telescope at the bright Banana Nebula.
As I expected, it's not very sharp overall.
Banana nebula is the nickname I gave it.

たまに晴れても湿っぽい空でガイド星は飛びまくるし、S/N比も良くない。
でも晴れた日には何かを撮っておきたいので、Haが明るいバナナ星雲に望遠鏡を向けてみた。
やっぱ全体的にシャープさがないな。
Banana nebulaは私が付けたニックネーム。

Place: Astropical@CSky Observatory (Bortle Class 3, Moon Phase 68.0%)

Shot1 Date:21st / Nov / 2024 21:04 (UTC+7)
TS TSRC10T Carbon Prime Focus　(250mm F/8 f/2000mm)
Filter: Optolong Ha,Oiii 3nm,, SVBony RGB set
Ha: 24X 300Secs Total 120 minutes
Oiii: 24X 300Secs Total 120 minutes
R: 5X 180Secs Total 15 minutes
G: 5X 180Secs Total 15 minutes
B: 5X 180Secs Total 15 minutes

Total 4 Hours 45 Minutes

Palette: Target Hoo (Sync SHO)
              Star RGB
Gain: 200 , Offset 5
CCD: Player One Artemis-M Pro Bin2
Mount :iOptron CEM70G
De-Rotator : Wanderer Mini V2 (0 Deg)
Guide: SVBony 60mm F/4, QHY290C.
Controler: NINA Dither, PHD2
Pre-Processing APP Drizzle None 
Post-Processing PI,PS
Shot By Taro Seki Astropical.uk

Banana-HOO_1-crop-Edit01-Finish