23 Nov 2022
At magnitude +7.3, the Helix Nebula is the brightest planetary nebula in the sky. NGC 7293 is a large and well-known planetary nebula located in the constellation of Aquarius. I must admit this has been the hardest set of images to process to get a decent end result.
NGC 7293
32 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 932 | 22h | 85 |
| Luminance | 321 | 7h35m | 85 |
| Red | 184 | 4h20m | 85 |
| Green | 180 | 4h15m | 85 |
| Blue | 194 | 4h35m | 85 |