Dark Hourse Nebula & The "S" Nebula & Trifid Nebula & M23 Open Cluster (Sky Region,LDN 66,M20,M23)
A section of the Milky Way northeast of Antares in the constellation Scorpius.
I've always wanted to photograph the Dark Hours Nebula. It's a large Sky Region formed by connecting dark lanes in the summer Milky Way, but it somehow resembles a horse standing up. The small S-shape next to its belly is the S Nebula.
It's also called the Snake Nebula. Perhaps it's a horse startled by a snake?
The red circle in the left center of the photo is the Trifid Nebula. The cluster of stars in the upper left is the Messier 23 Open Nebula.
This image was also heavily affected by the intense light pollution from the countless lights of a neighbor's outdoor party. While the overlap of light pollution from the east and west is unavoidable, Siril helped considerably.
I'll try again under a darker sky!!
I've always wanted to photograph the Dark Hours Nebula. It's a large Sky Region formed by connecting dark lanes in the summer Milky Way, but it somehow resembles a horse standing up. The small S-shape next to its belly is the S Nebula.
It's also called the Snake Nebula. Perhaps it's a horse startled by a snake?
The red circle in the left center of the photo is the Trifid Nebula. The cluster of stars in the upper left is the Messier 23 Open Nebula.
This image was also heavily affected by the intense light pollution from the countless lights of a neighbor's outdoor party. While the overlap of light pollution from the east and west is unavoidable, Siril helped considerably.
I'll try again under a darker sky!!
さそり座のアンタレスの北東にある天の川の切り取り
昔から撮ってみたかった、Dark Hourse Nebula。夏の天の川にある暗黒帯を繋ぎ合わせた大きなSky Regionだがなんとなく立ち上がった馬に見える。そのお腹の部分に寄り添っている小さなS字がS星雲。
Snake Nebukaとも呼ばれている。蛇に驚いて立ち上がっている馬なのだろうか。
写真左中央の赤い丸が三裂星雲。写真左上にある星の塊がMessier 23散開星雲。
これもお隣さんの野外パーティーの数えきれないライトの強烈な光害を浴びて、東側と西側の光害の被りは取りきれないが、かなりSirilに助けられた。
暗い空で再挑戦!!
Place: Astropical@Backyard Observatory East Pattaya Thailand (Bortle Class 8, Moon Phase 29.2%)
Shot Date:13th / Mar / 2026 03:29 (UTC+7)
Samyang MF 135mm F2.0 FStop F2.0
Filter: Optolong L-QEF
Gold :60X60Secs Total 60minutes
Total 1hour
Palette: Target RGB
Star RGB
Gain: 3300 , Offset 100
CCD: QHY 128C Pro Cooled Bin1
Mount :ProxiSky Ragdoll 17 (V1.0)
De-Rotator : None
Guide: SVBony 30mm F/4, ZWO ASI 120CM Mini
SVbony Mini Dovetail
Controler: NINA
Pre-Processing Siril 1.4.1 Drizzle None
Post-Processing PI,Affinity
Shot By Taro Seki Astropical.uk

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