A few globular clusters are still to come, but the end is in sight. Messier 92 is the 6th of a total of 9 globular clusters that I photographed in May and June using the VC200L and the EOS R, with consistent equipment and workflow.
M92 was the second object of the night and was photographed from around 1:30 AM to 3:30 AM.
High-resolution on Astrobin:
The annotated image:
Session details
| Telescope | Vixen VC200L |
|---|---|
| Corrector | intern |
| Effective focal length | 1800 mm |
| Camera | Canon EOS R(a) |
| Mount | Skywatcher HEQ5 Pro Hypertuned |
| Guiding equipment | APM 240mm |
| Guiding camera | ToupTek GPM462M |
| Date of capture | 19 May 2025 |
| Exposure (lights) | 25 × 300 s |
| Total integration | 2 h 5 min |
| Calibration frames | FLATS, DARKS, BIAS |
| Sensitivity | ISO 1600 |
| Capture setup | Stellarmate OS, Raspberry Pi 5, PowerBox Adv. |
| Processing date | 19 May 2025 |
| Software stack | PixInsight, Affinity Photo |
| Location | Koblenz |
| Focal ratio | f/9,0 |
| Image scale | 0,61 ″/px |
| Field of view | 68,3 × 45,5 ′ |
