Wallpaper author:
Jared Greer
03 Nov 2025
Pillar structures and surrounding gas within NGC 7822
Large 7-filter dataset of an emission nebula located in the constellation Cepheus 2900 light years distant. This image is presented in the false color HSO Pallete . The data was processed in Astro Pixel Processor, Pixinsight, and Photoshop.
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 |