The Proxima Centauri aka Alpha Centauri-C (プロキシマ・ケンタウリ) Closest Star  From  Our Earth

the closest star to earth
Proxima Centauri is the third of the triple stars Alpha Centauri.
It is the closest star to Earth, about 4 light years away.
Since it is a triple star, I thought it was close to Alpha Centauri-A, which is a 1st magnitude star, but it is far away. I have no idea why this star was judged to be one of the triple stars of Alpha Centauri.
If you try to put Alpha Centauri-A and Proxima in the same FOV, even a full-size sensor can only be captured with a telescope with a focal length of 700mm or less.
There was a request from a friend, and since it is difficult to capture it from the northern hemisphere unless it is south of Thailand, I took it.
The large orange star in the center (11th magnitude) is Proxima.

3重星のアルファ・ケンタウリの3番目がこのProxima Centauri星。
3重星と言うことなので1等星のAlpha Centauri-Aに接近しているのかと思いきや、なんととてつもなく離れていて、なぜこの星がAlpha Centauriの3重星の一つと判断できたのかさっぱりわからない。
もしAlpha Centauri-AとProximaを同一FOVに収めようとするとフルサイズのセンサーでも700mm以下の焦点距離の望遠鏡でないと写せない。

Place: Backyard East Pattaya (Bortle Class 6, Moon Phase 3.3%)
Shot Date 23rd / Mar / 2023 03:46 (UTC+7)
TS RC10 Trus  (250mm,F/8.0,f/2000mm)
filter: SVBonyRGB Filter set
R: 10X15Secs 2.5minutes
G: 10X15Secs 2.5minutes
B: 10X15Secs 2.5minutes

Total 7.5minutes

Palette: Target :RGB
Gain: 200 BIN2 Mono
Mount :iOptron CEM70G
Guide: No Guide
Pre-Processing APP  Drizlle None
Post-Processing PI,PS
Shot By Taro Seki