Wallpaper author:
Jeff Horn
28 Dec 2025
NGC 1999 HaLRGB
The Cosmic Keyhole
Dataset from which the image was processed
NGC 1999
20 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI Proline PL16803
- Target coordinates............................................................................................................................RA 84.1042 Dec 6.7
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................United States of America
- Transient event............................................................................................................................No
- Observed on............................................................................................................................15 Nov 2022 - 21 Jan 2023
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 3429 | 20h | 21 |
| Red | 2571 | 15h | 21 |
| Green | 2700 | 15h | 20 |
| Blue | 2700 | 15h | 20 |
| Halpha | 3600 | 20h | 20 |