Celestial hemisphere:  Northern  ·  Constellation: Aries (Ari)
Arp 56, Gary Imm
Arp 56, Gary Imm
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Arp 56

Arp 56, Gary Imm
Arp 56, Gary Imm
Powered byPixInsight

Arp 56

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Description

This Astrobin Debut Object also known as UGC 1432, is a galaxy located 370 million light years away in the constellation of Aries at a declination of +17 degrees.  This magnitude 15 galaxy spans 1 arc-minute in our apparent view, which corresponds to a diameter of 100,000 light years.  I cropped this image to a tight field radius of 0.090 degrees because of some nearby distracting bright stars.

In his Arp catalog, Dr. Arp classified this object into the category of Spiral Galaxies with Small, High Surface Brightness Companions on Arms. 

The galaxy structure shows a slight bar as well as VV rows in the main body.  At the top end of the strong arm is supposedly a small galaxy, designated LEDA 212878.  But its color and structure looks more like a star cloud in UGC 1432 and not a separate galaxy "companion" as Dr. Arp had assumed.

I did not include the Hubble image of this galaxy in the mouseover because it only covered half of the galaxy in mono.  That image confirms the slight bar to this galaxy and also confirms the top patch to be a star cloud and not a separate galaxy.

A distant galaxy cluster is seen to the upper right but I could not confirm its designation or distance.

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