17 Jan 2024
North of nebula, NGC1999, lie a host of Herbig-Haro objects, including several pictured here - HH222 (waterfall nebula), HH401 (cone at bottom right), and smaller HH34, 86-88 (bottom). These are depicted in an HaSII bicolor "hot iron" palette.
NGC 1999
5 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 290 | 2h30m | 31 |
| SII | 310 | 2h35m | 30 |
| OIII | 300 | 2h30m | 30 |