25 Mar 2026
Messier 101 is a face-on, counterclockwise intermediate spiral galaxy located 21 million light-years from Earth in the constellation Ursa Major. Dataset processed in Pixinsight with BlurExterminator, Noise Exterminator, and Star Exterminator scripts utilised in the workflow.
M101
13 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 211 | 3h42m | 63 |
| Blue | 150 | 2h38m | 63 |
| Green | 143 | 2h30m | 63 |
| Red | 153 | 2h38m | 62 |
| Halpha | 29 | 30m | 62 |