11 Jul 2025
This is a dataset of NGC 7331, also known as the Deerlick Group of galaxies. It is a visual group of five galaxies. The largest is NGC 7331 in the center which is about 40 million light years away in the constellation Pegasus. The other galaxies include NGC 7335, NGC 7336, NGC 7337 and NGC 7340 just above NGC 7331. These galaxies are much father away at about 300 million light years away. This dataset has over 27 hours of exposure time.
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 1800 | 9h | 18 |
| Red | 800 | 4h | 18 |
| Green | 847 | 4h | 17 |
| Blue | 847 | 4h | 17 |
| Halpha | 1271 | 6h | 17 |