Wallpaper author:
Ewen Sedman
25 Mar 2026
Pinwheel Galaxy
Messier 101 is a face-on, counterclockwise intermediate spiral galaxy located 21 million light-years from Earth in the constellation Ursa Major. Dataset processed in Pixinsight with BlurExterminator, Noise Exterminator, and Star Exterminator scripts utilised in the workflow.
Dataset from which the image was processed
M101
13 credit
- Type of target............................................................................................................................Galaxy
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 210.8024 Dec 54.3488
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................27 Dec 2019 - 11 Feb 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 211 | 3h42m | 63 |
| Blue | 150 | 2h38m | 63 |
| Green | 143 | 2h30m | 63 |
| Red | 153 | 2h38m | 62 |
| Halpha | 29 | 30m | 62 |