Messier 81 – Widefield, Mar’25

Messier 81 and surroundings in widefield!
Luminance captured at Hohen List, RGB taken earlier in Koblenz.
6h20m total exposure – a great showcase of what this scope-camera combo can do.

Once again, an astrophotograph where I captured the luminance component at the Hohen List observatory in the Eifel region. I had already recorded the three RGB channels the day before at home in Koblenz.

With a total integration time of 6 hours and 20 minutes, it’s rather short. For me, it’s a great demonstration of the performance of the telescope-camera combination.

Full resolution on Astrobin:

Session Details:

TelescopeBaader Apo 95 CaF2 – Travel Companion
Focal Length590mm
Erecting LenseBaader M68 Field Flattener
CameraToupTek SkyEye62AM
FilterBaader LRGB CMOS Optimized 50.4mm
MountSkywatcher HEQ5 Pro, Belt and Hypertuned
Guiding EquipmentPegasus Astro Indigo OAG
Guiding CameraToupTek GPM462M
Photography Date03/18/2025 and 03/19/2025
Exposure-Time LightsL 40x300s, R 20x180s, G 20x180s, B 20x180s
Correction framesFLATS, DARKFLATS, DARKS
SensitivityGAIN 100
Processing Date03/20/2025
Software StackStellarmate OS, PixInsight, Affinity Photo
Capture PlaceKoblenz, Germany
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