Wallpaper author:
Jonathan Lodge
29 Apr 2021
The Rosette Nebula
The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The nebula lies at a distance of 5,000 light-years from Earth and measures roughly 130 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see.
Pro Dataset.
Dataset from which the image was processed
Caldwell 49
4 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 97.9167 Dec 4.95
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Australia
- Transient event............................................................................................................................No
- Observed on............................................................................................................................22 Sept 2020 - 17 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 56 | 16m | 17 |
| Red | 49 | 14m | 17 |
| Green | 45 | 12m | 16 |
| Blue | 53 | 14m | 16 |
| Halpha | 1013 | 4h30m | 16 |