27 Mar 2021
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
Sh 2-308
14 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| OIII | 657 | 9h40m | 53 |
| Halpha | 634 | 9h20m | 53 |
| SII | 255 | 3h45m | 53 |