Wallpaper author:
Bernard Miller
19 Oct 2025
NGC 7822
This is a full 7-filter dataset of NGC 7822 with 48 hours of total exposure time (9 hours each L, Ha, OIII, and SII and 4 hours each of RGB). It is an emission nebula about 2,900 light years away in the constellation Cepheus.
Dataset from which the image was processed
NGC 7822
30 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI Proline PL16803
- Target coordinates............................................................................................................................RA 0.2858 Dec 67.4214
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................United States of America
- Transient event............................................................................................................................No
- Observed on............................................................................................................................29 Oct 2022 - 25 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 3130 | 20h | 23 |
| Red | 2348 | 15h | 23 |
| Green | 2455 | 15h | 22 |
| Blue | 2455 | 15h | 22 |
| SII | 3273 | 20h | 22 |
| Halpha | 3273 | 20h | 22 |
| OIII | 3270 | 19h59m | 22 |