Wallpaper author:
Jan Scheers
27 Mar 2021
Sh2-308 widefield image
Widefield SHO-image of the Dolphin Nebula (Sh2-308) in the constellation Canis Major, a cosmic bubble surrounding a Wolf–Rayet star named EZ Canis Majoris.
Image acquired with the AUS2 telescope, data from 4 one-click observations.
Total exposure 130 minutes. Sub-exposures were: SII 8 x 300s, H-alpha 10 x 300s, OIII 8 x 300s
Dataset from which the image was processed
Sh 2-308
14 credit
- Type of target............................................................................................................................Emission Nebula
- Camera............................................................................................................................FLI PL16803
- Target coordinates............................................................................................................................RA 103.5544 Dec -23.9283
- Hemisphere............................................................................................................................Southern
- Telescope location............................................................................................................................Australia
- Transient event............................................................................................................................No
- Observed on............................................................................................................................28 Aug 2020 - 08 Nov 2022
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| OIII | 657 | 9h40m | 53 |
| Halpha | 634 | 9h20m | 53 |
| SII | 255 | 3h45m | 53 |