11 Sept 2021
It is an HaRGB image:
RGB: acquired in 2019-09-04 through my Canon EOS 60Da + Canon EF 400mm f / 5.6L:
237x30s ISO 1600 = 1h 58m 30s;
Ha: From "PRO DATASETS" on Telescope Live:
11 x 300s = 55m
Cropped
NGC 7635
13 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 568 | 5h50m | 37 |
| OIII | 632 | 6h30m | 37 |
| SII | 600 | 6h10m | 37 |