Wallpaper author:
Ken Abremski
19 Dec 2025
NGC 7331 (Caldwell 30)
This galaxy is in the constellation Pegasus and about 44 M lyrs away. The 4 smaller galaxies in the upper part of the image are about 10x further away. The data were processed with PixInsight, RC-Astro tools, and Affinity 3.
Dataset from which the image was processed
NGC 7331
20 credit
- Type of target............................................................................................................................Galaxy
- Camera............................................................................................................................FLI Proline PL16803
- Target coordinates............................................................................................................................RA 339.2669 Dec 34.4158
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................United States of America
- Transient event............................................................................................................................No
- Observed on............................................................................................................................16 Sept 2022 - 15 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 1800 | 9h | 18 |
| Red | 800 | 4h | 18 |
| Green | 847 | 4h | 17 |
| Blue | 847 | 4h | 17 |
| Halpha | 1271 | 6h | 17 |