02 Nov 2025
IC 4604 is a reflection nebula in the constellation Ophiuchus. It is part of the large, active Rho Ophiuchi cloud complex, one of the nearest star-forming regions to Earth, located approximately 407 to 540 light-years away. The nebula appears blue because its gas and dust are reflecting the light from the bright, hot stars within it.
A good dataset, improved by utilising Affinity 'Dust and Scratches' to reduce the star backgound.
Processed using Pixinsight, Blur Exterminator, Affinity, Star Exterminator, Topaz De-Noise
IC 4604
8 credit
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Luminance | 344 | 3h15m | 34 |
| Red | 318 | 3h | 34 |
| Green | 326 | 3h5m | 34 |
| Blue | 212 | 2h | 34 |