19 Nov 2025
Sunspot
Following tutorial from Mark Johnston - which is great btw
Used Autostakkert to produce an b/w image of the best 400 frames
Used IMPPG to sharpen and contrast / tone image in B/W
Used GIMP to colourize image / little touches
This result is about the 4th attempt at colourising the image
Sunspot active region May 8 2025
7 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 1 | 30m | 2000 |