Arp 13 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7448

Arp 13

This Astrobin Debut Object, also known as NGC 7448, is a spiral galaxy located 90 million light years away in the constellation of Pegasus at a declination of +16 degrees. This magnitude 12 galaxy spans 2 arc-minutes in our apparent view, which corresponds to a diameter of 60,000 light years.

In his Arp catalog, Dr. Arp classified this object into the category of Spiral Galaxies with Detached Segments.

Numerous star clusters and HII regions are seen throughout the disk. An especially bright blue star region is see above and left of the core.

The disk structure is fascinating, with no real arms to be seen. An almost complete mid-region ring is seen around the core. Beyond the ring, the arm segments are stubby and discontinuous.

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Description: Comparison to Original Arp Image

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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.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
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Status	Advanced success
Started	...
Astrometry.net job	4669460
PixInsight job	BRB30MSP6W3NSODZX6LEYSZU17G4P0OA
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	23h00m03s.728
RA (top/left)	22h59m48s.695
RA (top/right)	22h59m46s.905
RA (bottom/right)	23h00m18s.745
RA (bottom/left)	23h00m20s.570

Dec (center)	+15°58′40″.64
Dec (top/left)	+16°04′34″.68
Dec (top/right)	+15°53′03″.78
Dec (bottom/right)	+15°52′46″.44
Dec (bottom/left)	+16°04′17″.43

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Arp 13

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