A calm, uneventful evening on which I used my Vixen Cassegrain again for the first time in a very long while. After doing a lot of work on my camera setups, I ended up having to use this telescope with the reducer if I wanted to use the color camera. Given that I only had this single evening, the color camera was the obvious choice anyway.
I chose Caldwell 28, an open star cluster I had never photographed before and which happened to be in a conveniently favorable position in the sky.
High-resolution on Astrobin:
The annotated image:
Session Details:
| Telescope | Vixen VC200L |
| Focal Length | 1280mm |
| Erecting Lense | Buildin |
| Camera | Canon EOS R(a) |
| Mount | Skywatcher HEQ5 Pro, Belt and Hypertuned |
| Guiding Equipment | William Optics Uniguide 50 |
| Guiding Camera | ToupTek GPM462M |
| Photography Date | 11/11/2025 |
| Exposure-Time Lights | 40x180s |
| Correction frames | FLATS, BIASES |
| Sensitivity | ISO 1600 |
| Processing Date | 11/17/2025 |
| Software Stack | Stellarmate OS, PixInsight, Affinity Photo |
| Capture Place | Koblenz, Germany |