Activated the color filter wheel with Red Green Blue filters and aligned on the comet. Too much work.
Time to upgrade from Windows XP to Windows 10 and save money for ToupTek ATR294C color or equivalent camera.

Sun distance (au): 4,71 Perihel 14. September 2024 Sun distance (au): 3,67

Time: 01:06UT 2025-08-18 Exp. 12, 20, 20 x 65sec.(RGB)
Tel: C14 @ f/5.2 ST-7 CCD -19°C 1.0"/pix Paramount GT-1100S

Time: 02:05UT 2025-08-24 23 x 125sec.
Telescope 0.254m f/5.8 ST-10XME CCD -23°C 0.95"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.