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Clavius, Plato, Copernicus - QHY5LII-M

Posted: Fri Jul 12, 2019 9:33 am
by turfpit
A chance to use an updated QHY SDK with a 75% waxing moon with Plato, Copernicus and Clavius all near the terminator.

Equipment: Celestron AVX, Celestron C8, QHY5L-II-M, 2x Barlow, IR685 filter.
Preparation: Solar System Align. Focus with JMI Moto-Focus.
Software: SharpCap 3.2.6054.0, Autostakkert!3, GIMP 2.10. Microsoft Image Composite Editor.
Capture: MONO8, Gain 30%, Exposure various to ensure histogram RHS ~60%. Capture Area 1280x960, 1024,768, 800x600, 640x480. Bortle 6 site. Intermittent cloud.
Processing: Stacked in AS!3, best 10% of frames. AS!3 sharpened file processed in GIMP - Auto Contrast, Unsharp Mask, Shadow-Highlights. The 4-panel mosaic was stitched with Microsoft ICE.

The 4 panels were captured at 640x480 @ 54 fps.

Clavius-4-panel-mosaic.jpg (195.91 KiB) Viewed 540 times

1024x768 @ 34 fps

Clavius-best-10percent-of-5000-frames.jpg (144.75 KiB) Viewed 540 times

800x600 @ 40 fps

Plato.jpg (191.44 KiB) Viewed 540 times

800x600 @ 40 fps

Copernicus.jpg (221.34 KiB) Viewed 540 times

Not the best of seeing conditions for using a 2X Barlow as can be seen in the AS!3 Quality Graph.

AS-quality-graph.JPG (16.38 KiB) Viewed 540 times

The next 2 phases 84% and 91% will give better illumination of the crater floors.