Ursa Minor Dwarf Galaxy v2, May’26

My second attempt at the same object in May 2026. This time at a focal length of just 590 mm.

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 high-resolution astrophoto on Astrobin with a wealth of additional information.

The annotated image:

Session Details:

TelescopeBaader Apo 95 Travel Companion
Focal Length590mm
Erecting LenseBaader M68 Field Flattener
CameraToupTek SkyEye62AM
FilterBaader R, G, B CMOS Optimized 50.4mm
MountWarpAstron WD-20P
Berlebach UNI18 ASTRO
Guiding EquipmentWilliam Optics Uniguide 50
Guiding CameraToupTek GPM462M
Photography Date05/25/2026 – 05/28/2026
Exposure-Time LightsR: 45x300s
G: 25x300s
B: 45x300s
Correction framesFLATS, DARKS
SensitivityGAIN 100, Offset 125
Processing Date05/31/2026
Software StackStellarmate OS, PixInsight, Affinity Photo
Capture PlaceKoblenz, Germany

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