see wiki
01 / Capture
- Object
- Cresent Nebular
- Object type
- Nebula
- Captured
- 2026-02-10
- Exposure
- 100 SHO
02 / Imaging train
- Equipment
- Celestron 11 Edge HD + Fast Star · Skywatcher EQ6-R-Pro · ZWO 1600MM · ZWO EFW · RGB
- Telescope
- Celestron 11 Edge HD + Fast Star
- Mount
- Skywatcher EQ6-R-Pro
- Camera
- ZWO 1600MM
- Filter wheel
- ZWO EFW
- Filter set
- RGB
- Scope type
- SCT
03 / Processing
- Workflow
- PixInsight
Image license: This gallery image is published under a Creative Commons license.
Object notes / Wikipedia
Crescent Nebula
The Crescent Nebula is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures.
Text and media excerpted from Wikipedia/Wikimedia under their applicable licenses; see the linked article for full attribution history and license details.