Wallpaper author:
Alan Daly
24 Apr 2023
Horsehead Nebula Widefield
This image shows part of the Orion molecular cloud complex, with the star-forming regions of the Orion Nebula (M42) in the top-right section. Older stars forming Orion’s Belt are also shown.
In the centre of the image lies the Horsehead Nebula (Barnard 33): a cold, dark cloud of gas and dust casting a shadow against the ionized hydrogen gas, illuminated by the bright star system Sigma Orionis (above the horse’s head). To the left (in this image) of the Horsehead is the star-forming Flame Nebula (NGC 2024), and between the Horsehead and Flame Nebulae lies NGC 2023, an emission and reflection nebula.
Dataset from which the image was processed
B33
1 credit
- Type of target............................................................................................................................Dark Nebula
- Camera............................................................................................................................FLI ML16200
- Target coordinates............................................................................................................................RA 85.24583 Dec -2.45833
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................09 Feb 2021 - 09 Feb 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 180 | 12m | 4 |
| Red | 180 | 12m | 4 |
| Green | 240 | 12m | 3 |
| Blue | 240 | 12m | 3 |
| Halpha | 60 | 3m | 3 |