21 Mar 2022
Blown by fast winds from a hot, massive star, this cosmic bubble is huge.It lies some 5,000 light-years away toward the constellation of the Big Dog (Canis Major)
Sh 2-308
14 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| OIII | 657 | 9h40m | 53 |
| Halpha | 634 | 9h20m | 53 |
| SII | 255 | 3h45m | 53 |