Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)
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Arp 183 (with Arp 36), Gary Imm
Arp 183 (with Arp 36), Gary Imm

Arp 183 (with Arp 36)

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Arp 183 (with Arp 36), Gary Imm
Arp 183 (with Arp 36), Gary Imm

Arp 183 (with Arp 36)

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Description

This image captures a pair of Arp objects located in the constellation of Canes Venatici at a declination of +31 degrees. Both of these are Astrobin Debut Objects.

Each Arp object is located about 225 million light years away. They are likely to be interacting with each other. Arp 183 (magnitude 14.4) is located at lower left and Arp 36 (magnitude 15.0) is at upper right. Each galaxy is similar is size, spanning 1.4 arc-minutes in our apparent view and having a diameter of 90,000 light years.

Arp 183 looks like a typical face-on grand design spiral galaxy with the arms slightly disturbed. It was classified by Dr. Arp into the category of Galaxies with Narrow Filaments. The "filaments" are the faint star streams which extend from the core, below right and below left, in between the 2 main arms. I believe that these "filaments" are simply a result of the disturbance of this galaxy, likely from Arp 36.

The Arp 183 galaxy structure is a bit confusing because of the yellowish features which appear overlaid on the bluish galaxy. The yellow object left of the core is likely a superimposed star. The yellow object to the lower right is a distant galaxy (2MASX J13345139 +3123014), located much further away at 1.6 billion light years. There are two bright parts to this small object at lower right - I am not sure if they represent the same distant galaxy (disturbed), two separate galaxies, or a galaxy and a star.

Arp 36 is an interesting "integral sign" galaxy. For more information on that object, please see my dedicated post on it here.

Although the Arp objects take center stage here, I like the numerous background galaxies just as much. There are a number of interesting galaxy cluster patterns here. The “<” pattern of distant galaxies in the middle of the image is my favorite. I also like the galaxy groupings above and right of center. These galaxies look to be about 2 billion light years away.

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