29 Jul 2023
The Trifid nebula found in the constellation of Sagittarius lies at a distance of approximately 5200 l.y. This region is a combination of an emission nebula, a reflection nebula, an open cluster of stars, and a dark nebula.
M20
3 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 1000 | 2h30m | 9 |
| Blue | 200 | 30m | 9 |
| Luminance | 100 | 15m | 9 |
| Red | 100 | 15m | 9 |
| Green | 100 | 15m | 9 |