The Bow-Tie Nebula (ボータイ星雲) NGC40

On the same day, my best friend and fellow observer at the observatory, Mr. VILAGE, was photographing the same target.
For me, it was the northernmost target I had hit so far, but it was unexpectedly bright and post-processing was a pain.
In the test shot, Blue had almost the same signal as Green, so I stopped shooting and allocated the time to Oiii, which has a strong edge circle contrast. Therefore, the color of the stars is the worst.
There aren't many natural red planetary nebulae, so I wanted to see them, but I was surprised to see that Ha was so bright.
Because of this, it looks like a composite photo, but it is definitely not a composite photo.


Place: Astropical@CSky Observatory (Bortle Class 3, Moon Phase 81.6%)
Shot Date:23rd / Nov / 2023 22:46(UTC+7)
TS TSRC10T Carbon Truss + Reducer x 0.67 (250mm F/5.3 f/1340mm)
Filter: Optolong Ha,Oiiii 3nm ,SVbony LRGB sets

Ha: 30X 60Secs Total 30minute
Oiii: 30X 60Secs Total 30minute
L: 30X 60Secs Total 30minute
R: 30X 60Secs Total 30minute
G: 30X 60Secs Total 30minute

Total 2 hours 30 minutes
Palette: Target  L-HaR-OiiiG-OiiiG
              Star LRGOiii
Gain: 200
CCD: ZWO ASI294mm Pro Bin2
Mount :iOptron CEM70G
Guide: SVBony 60mm F/4, QHY290C
Controler: NINA Dither
Pre-Processing APP Drizzle None
Post-Processing PI,PS Resampling 200%
Shot By Taro Seki