18 Jun 2023
The Trifid Nebula is a rare combination of an open cluster of stars and three different types of nebulas: an emission nebula, a reflection nebula, and a dark nebula.
(This image is a combination of 16 HSO FITs and 25 LRGB FITs.)
M20
10 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 67 | 40m | 36 |
| Red | 69 | 40m | 35 |
| Green | 857 | 8h20m | 35 |
| Blue | 65 | 38m | 35 |
| Halpha | 806 | 7h50m | 35 |