Wallpaper author:
Jan Scheers
21 Apr 2022
Cat's Eye Nebula
The Cat's Eye Nebula, also known as NGC 6543, is a planetary nebula in the northern constellation of Draco, about three thousand light-years from Earth.
This SHO-image mainly shows the nebula's surrounding halo.
The inner part is one of the most complex planetary nebulae in space.
Image acquired with SPA-2, data from 6 one-click observations.
Total integration time 360 minutes.
10 subs of 600s with each narrowband filter (SII, H-alpha and OIII).
Dataset from which the image was processed
NGC 6543
4 credit
- Type of target............................................................................................................................Planetary Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 269.6392 Dec 66.633
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................29 May 2020 - 12 Jun 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 30 | 8m | 16 |
| Red | 15 | 4m | 16 |
| Green | 15 | 4m | 16 |
| Blue | 16 | 4m | 15 |
| Halpha | 1520 | 6h20m | 15 |