Sun in Ha - February 6, 2022 - Huge SE Prom Day 2 (JDJ)

Contains: Solar system body or event

Sun in Ha - February 6, 2022 - Huge SE Prom Day 2

Acquisition type: Lucky imaging

Sun in Ha - February 6, 2022 - Huge SE Prom Day 2

Acquisition type: Lucky imaging

The Sun in H-alpha on February 6, 2022 featuring a huge prom on the SE limb for a second day. The prom evolved to take on a form resembling something like a 1950's rocket silhouette or maybe the Eiffel tower?

Imaged with a Lunt LS50Tha, 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 Registax (wavelet sharpening). Further sharpending and disk blackout using Solar Live View. Combined separate surface and prominence images into a composite image using GIMP.

Original version: Prom image further processed in Solar Live View

Rev B: Original prom image

Rev C: Combined surface and prom images

Rev D: Combined surface and prom images (with prom image inverted)

Final
Original
B
C
D

B

Title: Original prom image

Uploaded: ...

C

Title: Combined surface and prom images

Uploaded: ...

D

Title: Combined surface and prom images (with prom image inverted)

Uploaded: ...

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

Solar Imaging

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	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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.

Status	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Sun in Ha - February 6, 2022 - Huge SE Prom Day 2

Sun in Ha - February 6, 2022 - Huge SE Prom Day 2

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Sun in Ha - February 6, 2022 - Huge SE Prom Day 2

Sun in Ha - February 6, 2022 - Huge SE Prom Day 2

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