04 Apr 2021
Widefield SHO-image of the Horsehead nebula (Barnard 33) and IC434, acquired with the SPA-1 telescope.
Used data from 2 one click observations.
Total exposure 60 minutes. 4 subs of 300s with each narrowband filter.
B33
8 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 434 | 3h8m | 26 |
| Green | 258 | 1h52m | 26 |
| Red | 258 | 1h52m | 26 |
| Blue | 258 | 1h52m | 26 |
| Halpha | 708 | 4h55m | 25 |