Barnard's Galaxy... NGC 6822 in HaLRGB (Steve Timmons)

Barnard's Galaxy... NGC 6822 in HaLRGB

NGC 6822, commonly known as Barnard's Galaxy, is a member of the Local Group and lies approximately 1.6 million light-years away in the constellation Sagittarius. Star formation is actively taking place in many vast areas of ionized hydrogen gas, known as HII regions; these regions can be likened to miniature versions of Orion’s Great Nebula. When massive, young stars form within these clouds of gas and dust, their intense ultraviolet radiation ionizes the surrounding hydrogen, causing it to emit a characteristic red glow. In NGC 6822, the HII regions are notably vibrant and numerous, showcasing a bustling environment of stellar birth. NGC 6822, however, is not classified as a starburst galaxy. While it does contain several active star-forming regions, its rate of star formation is not as intense as that observed in galaxies categorized as starburst galaxies. Starburst galaxies are characterized by an exceptionally high rate of star formation, leading to rapid consumption of their interstellar gas. In contrast, NGC 6822, an irregular dwarf galaxy, exhibits a more moderate and sustained star-forming activity.

This image is a collaborative effort between my friend Don Waid and myself.

Please note: The following tables are updated every 24 hours.

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.

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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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