Solar Filaments and Prominences (24 July 2021) (rdk_CA)

Contains: Solar system body or event

Solar Filaments and Prominences (24 July 2021)

Acquisition type: Lucky imaging

Solar Filaments and Prominences (24 July 2021)

Acquisition type: Lucky imaging

In this image, I was able to capture several solar filaments along with some small prominences in a mid-afternoon imaging session on 24 July 2021. In this case, I used a monochrome camera equipped with an IMX178 sensor coupled with a DayStar Quark H-alpha chromosphere filter. These were attached to my 80 mm (480 mm FL) refractor, along with two extension tubes to achieve the necessary back focus.

The final image is a composite of two exposures (with the chromosphere data inverted to provide a smooth transition to the prominences at the edge.) I stacked the best 50% of all frames in AutoStakkert3! and performed sharpening with Registax 6. Final image editing was done with Photoshop. Coloring in the image is introduced artificially for asthetic appeal.

In case it would be of interest, camera settings for each set of exposures are given below.

Camera=ZWO ASI178MM-Cool
ROI dimensions: 3096 x 2080

Capture Settings (Chromosphere):
capture time=30 Seconds
frames: 616
pixel depth: 8 bit/pixel
fps: 29.37
gain: 131.00
exp: 10.43 ms

Capture Settings (Prominences):
capture time=30 Seconds
frames: 515
pixel depth: 8 bit/pixel
fps: 17.84
gain: 131.00
exp: 55.80 ms

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Astrometry.net job	n/a
PixInsight job	n/a
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Solar Filaments and Prominences (24 July 2021)

Solar Filaments and Prominences (24 July 2021)

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Solar Filaments and Prominences (24 July 2021)

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