Two active solar prominence areas, close-up: one 100,000 km in height! (Rick Veregin)

Contains: Solar system body or event

Two active solar prominence areas, close-up: one 100,000 km in height!

Acquisition type: Lucky imaging

Two active solar prominence areas, close-up: one 100,000 km in height!

Acquisition type: Lucky imaging

I was able to capture two active solar prominence areas.

Unlucky: Only one clear sunny morning a month for solar imaging so far in 2023 for me.

Lucky: Two wonderful active solar prominence areas for my February session

Details
A) SW limb, climbing to 100,000 km in height—about 2/3 Jupiter’s diameter--some branching tree or broccoli-like prominences. Time was 11:05:13 AM.
B) NE limb, a loop prominence, about 50,000 km in height. Time was 11:42:22 AM.

Note A and B are not shown on the same scale, they were each cropped for composition to best show off the details.

Capture
I used SharpCap at about 55 fps for 16-bit SER 640x480 videos of 10 s length with a 10 ms exposure, resulting in about 550 frames. Seeing was average, with a bit of haze and some wind gusts.

Processing
I first stacked in AutoStakkert, where I took the best 25% of the 550 frames, using a 3X drizzle. I followed with wavelet sharpening in Registax. In Photoshop, I inverted the overexposed solar disk to black, with some curves and levels contrast adjustments, then added color to match the red of Halpha, to simulate the visual look of the prominences. I then did upscaling and cropping to produce the final image.

Next up
Please watch soon on my page for a video of the branching prominences with about 90 minutes of activity compressed to 15 seconds.

I'm hoping for better weather in March, to get more time in this very active solar cycle…

Final
Original
B

B

Description: Loop prominence

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Canadian Astrophotography
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Two active solar prominence areas, close-up: one 100,000 km in height!

Two active solar prominence areas, close-up: one 100,000 km in height!

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Two active solar prominence areas, close-up: one 100,000 km in height!

Two active solar prominence areas, close-up: one 100,000 km in height!

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