Wallpaper author:
Marek Idec
30 Jul 2021
The Crescent Nebula
NGC 6888 known as the Crescent Nebula is an emission nebula in the constellation Cygnus. The picture from a premium Pro Dataset taken with the SPA-2 telescope and processed using dynamic narrowband combinations with PixelMath (formula based on https://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/)
Dataset from which the image was processed
NGC 6888
2 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 303.0292 Dec 38.35
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................16 Jul 2020 - 14 Dec 2021
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 930 | 2h35m | 10 |
| Luminance | 42 | 7m | 10 |
| Red | 12 | 2m | 10 |
| Green | 27 | 4m | 9 |
| Blue | 13 | 2m | 9 |