14 Mar 2023
NGC 6559 is a star-forming region located at a distance of about 5000 light-years from Earth, in the constellation of Sagittarius, showing both emission (red) and reflection (bluish) regions.
Image Details: HaRGB
15h in Total
22*600s - Red
22*600s - Green
23*600s - Blue
28*600s - Halpha
NGC 6559
13 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 622 | 4h40m | 27 |
| Blue | 578 | 4h20m | 27 |
| Green | 578 | 4h20m | 27 |
| Red | 622 | 4h40m | 27 |