Sun in Ha - February 21, 2022 (JDJ)

Contains: Solar system body or event

Sun in Ha - February 21, 2022

Acquisition type: Lucky imaging

Sun in Ha - February 21, 2022

Acquisition type: Lucky imaging

The Sun in H-alpha on February 21, 2022. Two sub panorama of the northern hemisphere featuring a great prom.

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). Generated panorama from 2 subs using Microsoft ICE. Processed in ImPPG (sharpening). Combined surface and prom images using GIMP.

Original version: Combined inverted surface and prom images

Rev A: Combined surface and inverted prom images

Final
Original
B
C
D

B

Title: Combined surface and inverted prom images

Uploaded: ...

C

Title: Prom image processed using Solar Live View

Uploaded: ...

D

Title: Lunt Ha Imaging Setup

Uploaded: ...

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

Solar Imaging

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Unknown

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
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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 21, 2022

Sun in Ha - February 21, 2022

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Sun in Ha - February 21, 2022

Sun in Ha - February 21, 2022

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