Wallpaper author:
Thomas Peter
28 Jan 2026
Caldwell 49
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 open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter.
Hope ya like it!
Tom
Dataset from which the image was processed
Caldwell 49
2 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 97.97916 Dec 5.02417
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................24 Dec 2020 - 29 Mar 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 600 | 1h | 6 |
| SII | 600 | 1h | 6 |
| OIII | 600 | 1h | 6 |