28 Nov 2021
This picture of the Great Orion Nebula was taken with narrowband filters. Total exposure time 2 hours 42 minutes. All versions were created from the same data set with various combinations of narrowband data assigned to RGB channels.
M42
8 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Green | 40 | 58m | 86 |
| Luminance | 50 | 1h12m | 86 |
| Red | 25 | 36m | 85 |
| Blue | 24 | 34m | 85 |
| Halpha | 123 | 2h54m | 85 |