22 Feb 2023
From 4 sets of one click observations dated from 15th to 18th February 2022.
I notice that there are faint residual (non-astronomical) dust rings to the left of the galaxy. 2 small dark rings (from L master) and 1 large red ring (from R master).
M104
7 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Blue | 280 | 2h20m | 30 |
| Luminance | 360 | 3h | 30 |
| Red | 270 | 2h15m | 30 |
| Green | 290 | 2h25m | 30 |