Wallpaper author:
sauro gaudenzi
18 Jul 2025
Sh2-161 starless
Sh2-161 is an emission nebula in the constellation Cassiopeia. it is located on the Perseus Arm and is composed of two distinct nebulae: Sh2-161A, of which most of the parameters are unknown, and Sh2-161B, directly connected with other surrounding nebulae, such as NGC 7538 and Sh2-159, located in the same region as the large association OB Cassiopeia OB2
Dataset from which the image was processed
Sh 2-261
6 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................QHY 600M
- Target coordinates............................................................................................................................RA 92.1792 Dec 15.6392
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................08 Dec 2024 - 27 Dec 2024
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 291 | 2h35m | 32 |
| SII | 309 | 2h45m | 32 |
| OIII | 300 | 2h35m | 31 |