barred spiral galaxy ngc2903 in leo 700d on nt150s 33x5min @ ISO800 |
Alas I overlooked both our 6" f8 and 10" f5 which at 1200mm focal length would have helped.
1. StarTools
700d on pn208 54x5min @ ISO800 |
2. GIMP stretch with mask. Can't lose the background...
3. Siril: found a rogue light frame. Stacked without, then StarTools AutoDev.
4. Sorry to bang on but made the background uniform grey...