The Headphone  Nebula (PK 164+31.1/Jones-Emberson 1) 

A planetary nebula in the constellation Lynx.
I've wanted to photograph this object for a few years now, but as an old man, I tend to forget about it quickly.
The other day I saw someone in a Japanese Facebook astronomy group photographing this nebula and capturing the surrounding galaxy beautifully, so I decided that this year I would definitely photograph it myself, and gave it a go.
I had hoped to collect signals for around 30 hours over the course of a week, but due to a malfunction of the mount I was only able to collect for 10 hours, or 30%, of the total.
So the result was completely different from what I had planned.
That's all for now, I'll try again next time.

やまねこ座にある惑星状星雲。
数年前からこのオブジェクトを撮影したいと思っていたが、老害の私はすぐに忘れてしまう。
先日日本のFBの天体グループの方がこの星雲を撮影していて、周辺の銀河も綺麗に写し題しているのを見て今年こそは自分でも撮影しようと思い撮影してみた。
1週間で30時間くらいSignalを集めたかったが、マウント不調のため30%の10時間しか集められなかった。
よってなんだか予定してたのもとまるで違う結果になってしまった。
今回はここまでにして、また次回頑張ろう。

Place: Astropical@CSky Observatory (Bortle Class 3, Moon Phase 24.5%)
Shot Date:13th / Jan / 2026 21:52(UTC+7)
TS TSRC10T Carbon Truss Prim Focus (250mm F/8.0 f/2000mm)
Filter: Optolong Ha,Oiii 3nm,Antlia V-Pro Lumi,SVbony RGB sets
Ha  40X300Secs Total 200minute
Oiii  42X300Secs Total 210minute
L  30X180Secs Total 90minute
R: 10X 180Secs Total 30minute
G: 10X 180Secs Total 30minute
B: 10X 180Secs Total 30minute

Total 9 hours 50 minutes

Palette: Target  SHO(Sync)+LRGB
              Star LRGB
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
Pre-Processing APP Drizzle Droplet 0.9 Scale 1.0
Post-Processing Affinity,PS 
Shot By Taro Seki Astropical.uk

combined_HP_Ha+Oiii-Edit01-Finish


combined_HP_Ha+Oiii-Edit01-Finish