Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  Horsehead nebula  ·  IC 430  ·  IC 434  ·  M 42  ·  M 43  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC 1990  ·  NGC 1999  ·  NGC 2024  ·  NGC 2064  ·  Part of the constellation Orion (Ori)  ·  The star 22Ori  ·  The star 42Ori  ·  The star Alnilam (εOri)  ·  The star Alnitak (ζOri)  ·  The star Mintaka (δOri)  ·  The star ηOri  ·  The star ιOri  ·  The star σOri  ·  The star υOri
M42 wide field test, Doug.,N. Jiang
M42 wide field test
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M42 wide field test

M42 wide field test, Doug.,N. Jiang
M42 wide field test
Powered byPixInsight

M42 wide field test

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Description

Another wide field test on the setup

For further tuning, i have tried rotating the CAA and adjust the tensions of three tightening screws.

It helped a bit yet still far from ideal.

I am considering order a new adapter that by pass the CAA of the camera.

Thanks Zhu Yijing for the hints in post process in PI.

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M42 wide field test, Doug.,N. Jiang