Horsehead Nebula in Hα and OIII
William Optics RedCat 51ZWO ASI2600MC Pro12.1 hBortle 4
Description
Demo picture: NASA, NOAO, ESA and The Hubble Heritage Team (STScI/AURA) (ESA/Hubble, CC BY 4.0, https://esahubble.org/images/heic0105a/).
Session
- Total integration
- 12 h 3 min
- Sky darkness
- Bortle 4
- Dates
- 5 Oct 2026 – 9 Oct 20265 nights
- TelescopeWilliam Optics RedCat 51
- CameraZWO ASI2600MC Pro
- Optics250 mm f/4.9 · 51 mm aperture
- MountZWO AM5 · Equatorial
| Filter | Exposure | Frames | Total (h:mm) |
|---|---|---|---|
| Optolong L-eXtremedual-band | 180 s | 241 | 12:03 |
Processing
- Tools
- Siril, GraXpert, StarNet, Photoshop
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