21 Oct 2026
This is a dataset of IC 1318, also known as the Butterfly Nebula. It is an emission nebula surrounding the star Sadr, about 1,800 light years away in the constellation Cygnus.
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| SII | 1169 | 12h40m | 39 |
| Halpha | 1200 | 8h40m | 26 |
| OIII | 1200 | 12h20m | 37 |