Wallpaper author:
John Ebersole
22 Jan 2026
LDN 939
LDN 939 and Sh2 115 of Cygnus in an HST palette.
Dataset from which the image was processed
LDN 939
8 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16083
- Target coordinates............................................................................................................................RA 307.7667 Dec 47.66
- Hemisphere............................................................................................................................Northern
- Telescope location............................................................................................................................Spain
- Transient event............................................................................................................................No
- Observed on............................................................................................................................11 Jul 2022 - 07 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 600 | 3h40m | 22 |
| OIII | 600 | 3h40m | 22 |
| SII | 600 | 3h40m | 22 |