Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm (altazastro)

Contains: Solar system body or event

Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm

Acquisition type: Lucky imaging

Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm

Acquisition type: Lucky imaging

The seeing was bad, Jupiter was low in the sky (25 degrees and less) and I had just a ten minutes window between its "rising" behind a building and its "setting" behind another.
I tried to use the Barlow but had to give up, indeed I took just the first image with full spectrum (IR Cut at 750 nm), then, thinking the seeing was possibly worse than it really was, I switched to the Astronomik IR 642 (642-842 nm) to take the other two pics.

The progressive setting of Europa behind Jupiter is clearly visible, while the rising of the GRS from the opposite side of the giant planet can only really be glimpsed in the second of my pics.

The use of the IR PASS filter allows many different structures in the Jovian atmosphere to be seen when compared to the full spectrum image ... some can even be artifacts.

First image: 22.29 UTC, 1950 frames at 4 ms, IR CUT at 750 nm.

Second Image: 22.33 UTC, 780 frames at 8 ms, IR PASS (642-842 nm).

Third image: 22.37 UTC, 1992 frames at 6.8 ms, IR PASS (642-842 nm).

To the left the WinJupos representation, in the center a 140% resized image and to the right the original image.

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Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm

Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm

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Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm

Jupiter and Europa - 20221125 - Celestron C6 at 1500 mm

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