NGC 2684 and Friends (Gary Imm)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 2684 · NGC 2686 · NGC 2687 · NGC 2688 · NGC 2689 · PGC 2334236 · PGC 2335456 · PGC 2335478 · PGC 2335698 · PGC 2336067 · PGC 25026 · PGC 25031 · PGC 25042

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NGC 2684 and Friends

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NGC 2684 and Friends

This object is a small spiral galaxy located 140 million light years away in the constellation of Ursa Major at a declination of +49 degrees. This galaxy spans only 1 arc-minute in our apparent view, which corresponds to an actual diameter of 50,000 light years.

This galaxy has one of the strangest disk structures I have ever seen. The disk doesn’t look very disturbed in overall shape, yet the arms are broken up into a fascinating pattern. The arms form a bit of a mid-region ring with gaps at top and bottom. Outside of this “ring” structure, only bits of arms are visible, with a distinct lack of arm structure on the bottom left side of the disk.

Many other galaxies are visible in the background, at distances varying from 300 million to 2 billion light years away. I don’t believe that any are interacting with NGC 2684, but something must be causing its unusual arm pattern. The most visually interesting of these other galaxies are the two pairs of distant galaxies to the lower left, NGC 2686 & PGC 25026, and NGC 2687 & PGC 25031. There is also an interesting galaxy trio (PGC 2336067) to the upper left.

Schmidt-Cassegrain Telescope (SCT) Imagers
Cloudy Nights
ZWO ASI1600MM/QHY163M
Texas Astronomy
Images from the EdgeHD Series

Astrobin Debuts (660 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	3548921
PixInsight job	ILOPA7BRE109SQJOUIAQUPL531G0IHYF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	08h55m06s.180
RA (top/left)	08h55m47s.927
RA (top/right)	08h54m15s.145
RA (bottom/right)	08h54m24s.616
RA (bottom/left)	08h55m57s.940

Dec (center)	+49°10′40″.36
Dec (top/left)	+49°17′09″.40
Dec (top/right)	+49°15′01″.33
Dec (bottom/right)	+49°04′10″.69
Dec (bottom/left)	+49°06′17″.80

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NGC 2684 and Friends

NGC 2684 and Friends

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NGC 2684 and Friends

NGC 2684 and Friends

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