Jupiter's Great Red Spot with a small refractor (Paul Macklin)

Contains: Solar system body or event

Jupiter's Great Red Spot with a small refractor

Acquisition type: Lucky imaging

I captured this as an experiment with a 61mm APO refractor and a 5x TeleVue PowerMate, operated with an ASIAIR pro. In my image train, Jupiter was about 100 pixels wide prior to processing. This is pretty much the very edge of what I think we can get out of a small APO refractor.

I captured 3 minutes of video at 240p at about 100 frames per second (camera cooled to -5C) at high gain. In Autostakkert, I stacked the best 5% of the approximately 18,000 frames with 3x drizzle (Frame B), and performed wavelet sharpening in Registax (Frame C). I then rotated it 180 degrees, cropped, and performed additional color and contrast enhancements in photoshop (Frame D). Lastly, I used Photoshop's smart sharpen with default settings (Final panel).

Looks like I also caught a couple of rafts.

B

Description: 3x drizzle stacking in Autostakkert (take top 5% of frames)

Uploaded: ...

C

Description: After wavelet sharpening in Registax

Uploaded: ...

D

Description: After processing in Photoshop to rotate, crop, and bring out the colors.

Uploaded: ...

ASI533MC Pro

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Jupiter's Great Red Spot with a small refractor

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Jupiter's Great Red Spot with a small refractor

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