Sun in Ha - July 24, 2022 (JDJ)

Contains: Solar system body or event

Sun in Ha - July 24, 2022

Acquisition type: Lucky imaging

Sun in Ha - July 24, 2022

Acquisition type: Lucky imaging

The Sun in H-alpha on July 24, 2022.

Imaged with a Lunt LS50Tha (with feathertouch focuser and ZWO EAF), Lunt LS50C compact double stack filter, Coronado Cemax 2x Barlow, ZWO ASI178MM. Imaging train was configured to give ~F/14 (FL=700mm).

Image capture using Firecapture. Stacking in AutoStakkert3 (best 25% of 1000 frames). Full disk panorama generated from 2 sub images using Microsoft ICE. Processed in ImPPG (sharpening). Prom image generated from chromosphere image using curves adjustment in ImPPG. Combined surface and prom images using GIMP.

Original: Chromosphere (inverted) combined with proms

Rev B: Chromosphere combined with proms (inverted)

Original
Final
B
C
D

B

Description: Chromosphere combined with proms (inverted)

Uploaded: ...

C

Description: Half-disc pano using LS50DS and AIS290mm, chromosphere (inverted) + proms

Uploaded: ...

D

Description: Half-disc pano using LS50DS and AIS290mm, chromosphere + proms (inverted)

Uploaded: ...

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

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
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
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 - July 24, 2022

Sun in Ha - July 24, 2022

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Sun in Ha - July 24, 2022

Sun in Ha - July 24, 2022

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D

Histogram

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