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.

同じ日に親友であり観測場仲間でもあるVILAGEさんがおなじターゲットを撮影していた。

自分的には今までの中で最北のターゲットだったが、思いの外明るくて後処理が面倒だった。

テストショットで、BlueはほぼGreenと同じSignalだったので撮影をやめ、その時間をエッジ部のサークルのコントラストが強いOiiiに割り振って見た。よって星の色は最悪。

自然で赤い惑星状星雲は少ないので、見て見たかったのだが、Haはものすごく明るくて驚いた。

その影響でなんとなく合成写真みたいだが、決して合成写真ではないのです。

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

              Star LRGOiii

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 Astropical.uk