Caldwell 7, Mar’26

A new object in my collection – the galaxy Caldwell 7.

A very low-key astrophotography session in RGB with the mirrorless camera.

A rather small target, considering I’m shooting the galaxy with the 590 mm apo. After optimizing the cable management on the apo, I can’t connect the Pi to my Vixen VC200L anymore – but a solution is on the way.

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
CameraCanon EOS R(a)
FilterBaader UHC-L Booster (CMOS Optimized) 50.4mm
MountSkywatcher HEQ5 Pro, Belt and Hypertuned
Guiding EquipmentWilliam Optics Uniguide 50
Guiding CameraToupTek GPM462M
Photography Date3/1/2026
Exposure-Time Lights40x300s
Correction framesFLATS, DARKS
SensitivityISO 1600
Processing Date3/6/2026
Software StackStellarmate OS, PixInsight, Affinity Photo
Capture PlaceKoblenz, Germany

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