The Banana Nebula In Cassiopeia (SH2-188)

A planetary nebula in the constellation Cassiopeia.
(Reprocessed image based on accumulated past photographs)

This planetary nebula has many names, such as shrimp, dolphin, and Firefox, but this time I tried to make it resemble a banana that will be ripe in two days, with some green remaining.
If it gathers more signal, it will form an arc rather than a crescent shape, so I'd like to photograph it again next season to capture that arc.

カシオペア座にある惑星状星雲。
(過去の撮影写真の積み上げによる再処理)

えび、イルカ、Firefox、、、色々な呼び名のあるこの惑星状星雲であるが、今回は若干緑の部分が残る2日後が食べ頃のバナナ風にしてみた。
もっとシグナルを集めると三日月型ではなく、円弧を描くので来季には撮りましして円弧にしたいな。

Place: Astropical@CSky Observatory (Bortle Class 3, Moon Phase 70.0%)
Shot Date:3rd / Nov / 2023 23:37(UTC+7)
TS TSRC10T Carbon Truss + Reducer x 0.67 (250mm F/5.3 f/1340mm)
Filter: Optolong Ha, OIII, Sii 3nm
Ha: 12X 300Secs Total 60minute
OIII: 12X 300Secs Total 60minute
Sii: 12X 300Secs Total 60minute
Total 3 hours
Gain: 200
CCD: ZWO ASI294mm Pro Bin2

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
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-Edit01-Finish