Celestial hemisphere:  Northern  ·  Constellation: Boötes (Boo)  ·  Contains:  NGC 5665
Getting plate-solving status, please wait...
Arp 49, Gary Imm
Arp 49, Gary Imm

Arp 49

Getting plate-solving status, please wait...
Arp 49, Gary Imm
Arp 49, Gary Imm

Arp 49

Equipment

Loading...

Acquisition details

Loading...

Description

This Astrobin Debut Object, also known as NGC 5665, is a spiral galaxy located 105 million light years away in the constellation of Boötes at a declination of +8 degrees. This magnitude 12.7 galaxy spans 2 arc-minutes in our apparent view, which corresponds to a diameter of 60,000 light years.

This galaxy shows a nice amount of structure despite being so small and far away. The color contrasts in the disk are wonderful – yellow core, red HII regions, blue star forming regions, and even some hints of purple. The bright chaotic inner region is not centered around the core.

This galaxy was classified by Dr. Arp into the category of Spiral Galaxies with Small, High Surface Brightness Companions on Arms. It appears that he believed the bright stellar-like object to the left of the core to be a “companion”. I think it is clear in my image that it is a knot within the galaxy, similar to other knots seen closer to the core.

If another galaxy has disturbed this object, which seem likely based on the disk structure, the culprit has either left the scene or has been absorbed into the galaxy.

Comments