09 Oct 2020
The Cat's Eye planetary nebula in Draco. The dimensions are about 25" by 20". The Officina Stellare ProRC 700 is an excellent instrument for this object, but a lot of exposure time is needed. This photo represents only 30 minutes, and the processing was difficult. I would like to add many more 5 minute frames. SII frames yielded virtually no contribution.
NGC 6543
4 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 30 | 8m | 16 |
| Red | 15 | 4m | 16 |
| Green | 15 | 4m | 16 |
| Blue | 16 | 4m | 15 |
| Halpha | 1520 | 6h20m | 15 |