Wallpaper author:
Mike Paling
24 Oct 2026
CED90 or Sh2-297 in the Seagull Nebula
Ced 90 or Sh2-297 in the Seagull Nebula
Ced90 or Sh2-297 is an emission nebula in the constellation Canis Major. The region was catalogued in 1959 in the extended seconded edition of the Sharpless catalogue. This area of Canis Major is a very active area of new star formation.
Dataset from which the image was processed
CED 90
6 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI ProLine PL9000
- Target coordinates............................................................................................................................RA 106.3042 Dec -12.3167
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Chile
- Transient event............................................................................................................................No
- Observed on............................................................................................................................24 Apr 2022 - 06 Jan 2023
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| OIII | 667 | 3h20m | 18 |
| Halpha | 600 | 3h | 18 |
| SII | 533 | 2h40m | 18 |