Wallpaper author:
John Ebersole
26 Nov 2025
B33
Barnard 33, the Horsehead Nebula, is depicted here in an Ha hot iron palette.
Dataset from which the image was processed
B33
1 credit
- Type of target............................................................................................................................Dark Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 85.2458 Dec -2.45833
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................06 Nov 2021 - 12 Dec 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 1200 | 1h20m | 4 |
| OIII | 300 | 20m | 4 |
| SII | 300 | 20m | 4 |