Wallpaper author:
John Ebersole
13 Nov 2025
Horsehead Nebula
Horsehead Nebula in a wavelength-ordered SII-SIIHa-Ha palette.
Dataset from which the image was processed
Horsehead Nebula
15 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................ZWO ASI 2600MM Pro
- Target coordinates............................................................................................................................RA 85.2458 Dec -2.4583
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................23 Jan 2023 - 29 Jan 2023
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| SII | 300 | 5h | 60 |
| Halpha | 300 | 5h | 60 |
| OIII | 305 | 5h | 59 |