It's a bit off topic, but here's an image taken with my old trusty AP-900 carrying a payload night after night with out fail.  :)  

The Antennae Galaxies are one of the youngest examples of colliding galaxies, as well as one of the nearest pairs of interacting galaxies to Earth.  They are located in the constellation of Corus around 45 million light years away.  

NGC 4038 and NGC 4039 were two separate galaxies some 1.2 billion years ago.  The larger was a spiral galaxy, NGC 4039.  The smaller galaxy was a barred spiral, NGC 4038.

Astrobin link:

https://www.astrobin.com/345583/

Flickr link:

https://www.flickr.com/photos/97807083@N00/41231840254/in/album-72157646565068452/

Thanks for looking