3 or 4 hours of clear sky. More than enough time for a real test with my Off-Axis-Guider. I did struggle a lot. I had to find out, that M53 is really one of the toughest Messier objects to learn how to use an OAG. After some time I found a single guidestar – with a brightness of less than 11! But still, it worked.
After the session I invested some time to analyse my session and the date in Stellarium. I think I am prepared to start into a future guiding with an Off-Axis-Guider.
High resolution on Flickr:
Session details
| Telescope | Vixen VC200L |
|---|---|
| Corrector | intern |
| Effective focal length | 1800 mm |
| Camera | Canon EOS M100(a) |
| Mount | Skywatcher HEQ5 Pro |
| Guiding equipment | Pegasus Indigo OAG |
| Guiding camera | QHY 5-III-462C |
| Date of capture | 2023-04-19 |
| Exposure (lights) | 10 × 180 s |
| Total integration | 30 min |
| Calibration frames | FLATS, BIAS |
| Sensitivity | ISO 400 |
| Capture setup | Ubuntu, EKOS/INDI, PHD2 |
| Processing date | 2023-04-20 |
| Software stack | PixInsight, Affinity Photo |
| Location | Koblenz, Rheinland |
| Focal ratio | f/9,0 |
| Image scale | 0,43 ″/px |
| Field of view | 43,0 × 28,7 ′ |
Hallo Thomas
Schön aufgelöst und runde Sterne .
Weiter so.
Gruß Joachim