UGC 5055 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa)

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UGC 5055

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UGC 5055

This object is a face-on spiral galaxy located 360 million light years away in the constellation of Ursa Major at a declination of +56 degrees. This galaxy spans 1.5 arc-minutes in our apparent view, which corresponds to an actual diameter of 150,000 light years. The galaxy is very small and is tightly cropped in this image to exclude two bright stars, one on each side of it.

I love the look of ring galaxies. Ring galaxies are generally thought to be formed from galaxy collisions or close interactions. This galaxy is not a ring galaxy in the classic sense, in that the central bar is strongly connected to the tightly wound arms. The "ring" may look more dramatic here because the galaxy is so far away that its dimmer diffuse outer disk regions cannot be seen. I like the number of bright star clusters in the "ring", as well as the dark void in the space around the barred core.

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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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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	3279524
PixInsight job	BRR3DJ1MP8086M06G2WUORKFDWN7UJ6V
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	09h30m11s.700
RA (top/left)	09h29m15s.260
RA (top/right)	09h30m23s.113
RA (bottom/right)	09h31m08s.170
RA (bottom/left)	09h30m00s.236

Dec (center)	+55°51′12″.29
Dec (top/left)	+55°52′31″.16
Dec (top/right)	+55°43′20″.27
Dec (bottom/right)	+55°49′51″.20
Dec (bottom/left)	+55°59′03″.57

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UGC 5055

UGC 5055

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UGC 5055

UGC 5055

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