Wallpaper author:
Giovanni Ferrero
05 Nov 2026
Continuum subtracion first attempt
Satisfied with Ha regions, but struggled a lot with the core, gradient and with hot pixels (removed manually in PS) .
Dataset from which the image was processed
NGC 6822
3 credit
- Type of target............................................................................................................................Galaxy
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 296.2342 Dec -14.7976
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................15 Jul 2020 - 26 Jun 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 220 | 22m | 6 |
| Red | 220 | 22m | 6 |
| Green | 220 | 22m | 6 |
| Blue | 220 | 22m | 6 |
| Halpha | 1800 | 3h | 6 |