Sun in Ha - August 4, 2022 - Giant Prom (JDJ)

Contains: Solar system body or event

Sun in Ha - August 4, 2022 - Giant Prom

Acquisition type: Lucky imaging

Sun in Ha - August 4, 2022 - Giant Prom

Acquisition type: Lucky imaging

The Sun in H-alpha on August 4, 2022 featuring a giant prominence. This was day 2 for this prom which was the largest and most interesting prom I have imaged in my 2 or so years of solar astrophotography. The prom was in the process of transforming from the the magnificent arch prom seen the day before (see: https://astrob.in/h3dcxi/0/) when I made this capture.

Imaged with a Lunt LS50Tha (with feathertouch focuser and ZWO EAF), Lunt LS50C compact double stack filter, 2.5x Televue Powermate, ZWO ASI290MM. Imaging train was configured to give ~F/18. Image capture using Firecapture. Stacking in AutoStakkert3 (best 25% of 1000 frames). Processed in ImPPG (sharpening). Prom image generated from surface image using curves adjustment in ImPPG. Combined surface and prom images using GIMP.

Original version: Prominence image colorized with Solar Live View

Rev B: Prominence image

Rev C: Surface (Inverted) image combined with prominence image

Rev D: Surface image combined with prominence (inverted) image

Original
B
C
D
Final
E

B

Description: Prominence image

Uploaded: ...

C

Description: Surface (Inverted) image combined with prominence image

Uploaded: ...

D

Description: Surface image combined with prominence (inverted) image

Uploaded: ...

E

Description: Additional procesing using LuSol-3D

Uploaded: ...

Narrowband Solar imaging
Solar System Imaging
Cloudy Nights
Suburban Astrophotography
Sun in hydrogen 656 nm light

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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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

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Astrometry.net job	n/a
PixInsight job	n/a
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Sun in Ha - August 4, 2022 - Giant Prom

Sun in Ha - August 4, 2022 - Giant Prom

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Sun in Ha - August 4, 2022 - Giant Prom

Sun in Ha - August 4, 2022 - Giant Prom

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