A single clear night are my favorite nights for clusters. Since I wanted to test guiding performance with my APO on my HEQ5 again without changing anything at the setup, I went out with some widefield objects again.
Session Planning
I was looking for a group of open Starclusters without nebulae. I ended up with the region in Cassiopeia around Caldwell 10 and Messier 103.
I photographed exactly the planned field of view. In the final image i rotated the frame a bit while I cropped it at the same time.
Session Analysis
This was a really relaxed session without countable ups and downs. I was happy that the guiding worked again without a change to the setup. The last 2 sessions with worse guiding performance must have been the fault of bad seeing.
High-resolution on Astrobin:
The annotated image:
Session Details:
| Telescope | Baader Apo 95 CaF2 – Travel Companion |
| Focal Length | 590mm |
| Erecting Lense | Baader M68 Field Flattener |
| Camera | CANON EOS R(a) |
| Guiding Equipment | Pegasus Astro Indigo OAG |
| Guiding Camera | QHY 5-III-462C |
| Mount | Skywatcher HEQ5 Pro, Belt and Hypertuned |
| Photography Date | 09/20/2024 |
| Exposure-Time Lights | 45x300s |
| Correction frames | FLATS, BIASES |
| Sensitivity | ISO 1600 |
| Processing Date | 09/22/2024 |
| Software Stack | Stellarmate OS, PixInsight, Affinity Photo |
| Capture Place | Koblenz, Germany |
