24 Jun 2025
This is a dataset of NGC 281, also known as the Pacman Nebula. It is an emission nebula about 9,500 light years away in the constellation Cassiopeia. It is an SHO dataset with RGB data for the stars with over 27 hours of exposure time.
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Red | 154 | 36m | 14 |
| Green | 154 | 36m | 14 |
| Blue | 154 | 36m | 14 |
| SII | 2057 | 8h | 14 |
| Halpha | 2057 | 8h | 14 |
| OIII | 2057 | 8h | 14 |