About half a month ago, I photographed the same object at a focal length of 1,800 mm and was only moderately pleased with the result. The reason is that the dwarf galaxy does not show any visible nebulous structures – at least not with my equipment – and fills a fairly large portion of the frame.
The latter point in particular was what prompted me to try photographing it again at a shorter focal length.
High-resolution on Astrobin:
The annotated image:
Session Details:
High resolution on Astrobin:
The annotated image:
Session details
| Telescope | Baader Apo 95 CaF2 – Travel Companion |
|---|---|
| Corrector | Baader M68 Field Flattener |
| Effective focal length | 590 mm |
| Camera | SkyEye62AM |
| Filters | Baader R CMOS Optimized 50.4mm Baader G CMOS Optimized 50.4mm Baader B CMOS Optimized 50.4mm |
| Mount | WarpAstron WD-20P Berlebach UNI18 ASTRO |
| Guiding equipment | William Optics Uniguide 50 |
| Guiding camera | ToupTek GPM462M |
| Date of capture | 2026-05-25 2026-05-26 2026-05-28 |
| Nights | 3 |
| Exposure (lights) | R: 45 × 300 s G: 25 × 300 s B: 45 × 300 s |
| Total integration | 9 h 35 min |
| Calibration frames | FLATS, DARKS |
| Sensitivity | GAIN 100, Offset 125 |
| Capture setup | Stellarmate OS, Raspberry Pi 5, PowerBox Adv. |
| Processing date | 2026-05-31 |
| Software stack | PixInsight, Affinity Photo |
| Location | Koblenz |
| Focal ratio | f/6,2 |
| Image scale | 1,31 ″/px |
| Field of view | 208,9 × 139,3 ′ |
