NGC 3683 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3683

NGC 3683

This Astrobin Debut Object is a HII galaxy located 100 million light years away in the constellation of Ursa Major at a declination of +57 degrees. HII galaxies have large starburst activity, usually due to tidal interactions. They are small (dwarf) and very luminous.

Typical of a HII galaxy, this object is noticeably brighter and more pink than a typical galaxy. It spans 1.5 arc-minutes in our apparent view, which corresponds to a diameter of 50,000 light years.

The galaxy structure here is interesting and hard to understand. It looks to me like this galaxy is in transition from a dwarf galaxy to a spiral galaxy.

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Astrobin Debuts (670 DSOs)
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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	Advanced success
Started	...
Astrometry.net job	4657772
PixInsight job	O3OHWLI304IWE0TBHOZZ1GDS3K6Y3KJN
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h27m32s.328
RA (top/left)	11h28m19s.729
RA (top/right)	11h26m44s.815
RA (bottom/right)	11h26m45s.910
RA (bottom/left)	11h28m19s.673

Dec (center)	+56°52′41″.40
Dec (top/left)	+56°56′58″.35
Dec (top/right)	+56°56′57″.29
Dec (bottom/right)	+56°48′22″.66
Dec (bottom/left)	+56°48′23″.54

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NGC 3683

NGC 3683

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NGC 3683

NGC 3683

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