22 May 2025
This is a dataset of M81. It is a type Sa spiral galaxy about 11.8 million light years away in the constellation Ursa Major.
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 1705 | 9h | 19 |
| Red | 758 | 4h | 19 |
| Green | 758 | 4h | 19 |
| Blue | 800 | 4h | 18 |
| Halpha | 1800 | 9h | 18 |