Little Ghost Planetary Nebula (リトル・ゴースト惑星状星雲) NGC6369 

Not de-focus star for collimation
Plate Solving was successful, and when I looked at the 3-second shot image used in Plate Solving, it was out of focus. Wow why is it so out of focus?
No, Plate Solving will not succeed if Focus is so misaligned.
The first look of this nebula fits like this.
Actually, there seem to be countless patterns inside and outside this nebula, but I couldn't catch them on that day cause too short expose time.

Plate Solvingが成功して、Plate Solvingで利用した3秒の撮影Imageを見てみるとフォーカスが合っていない。うわーなんでこんなにフォーカスずれているんだ?
いやちがう、こんなにFocusがズレていたらPlate Solvingは成功しない。

Place: Backyard East Pattaya (Bortle Class 6, Moon Phase 82.3%)
Shot Date :12th / May / 2022 02:50 (UTC+7) Start
TS RC10 Truss Prime Focus(250mm F/8 f/2000mm)
filter: Optolong L-Pro
L-Pro 31X60 secs 31 minutes
Total 31minutes
Palette: Manual RGB
Gain: 10 Offset 76 BIN1
Mount :iOptron CEM70G
Guide: SVbony 60mm F/4 f/240mm , QHY 290C
Controler:NINA,PHD2 Dithering 5pix, 3 frames each
Pre-Processing APP
Post-Processing PI,PS
Shot By Taro Seki