Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 883
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Arp 193, Gary Imm
Arp 193, Gary Imm

Arp 193

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Arp 193, Gary Imm
Arp 193, Gary Imm

Arp 193

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Description

This Astrobin Debut Object, also known as IC 883, is located 340 million light years away in the constellation of Canes Venatici at a declination of +34 degrees.

The bright central section of this magnitude 14.4 object spans 40 arc-seconds in our apparent view, which corresponds to a diameter of 70,000 light years. The tidal star streams extend twice that distance in orthogonal directions.

This is an intriguing object. It seems to be the result of a merger of 2 small galaxies. I find it interesting, though, that the cores are so far along in the merger process while the 2 resulting star streams are still so distinct. I would have expected them to be coalescing into more of a spherical shape by now.

Portions of the core section have a slight red tint, reflecting Ha regions and star formation. This galaxy has been classified as a starburst galaxy because of the large amount of star formation taking place as a result of the merger.

This galaxy was classified by Dr. Arp into the category of Galaxies with Narrow Filaments. It is interesting that he makes no mention of a merger here. He was much more of a proponent of ejections than mergers when it comes to these objects.

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