Galaxy NGC3718 (Arp 214) and Hickson Compact Group 56 in Ursa Major.
The full-frame view also shows the galaxy NGC3729 and a host of faint fuzzies in the background.
This image was acquired under a very bright 9-day old moon and extremely dry sky conditions.
The image is a stack of 20 eight minute exposures (for a total of 160 minutes), acquired
using an SXV-H9 CCD camera on a Vixen R200SS 8" f/4 Newtonian equipped with a Paracorr.
The exposures were calibrated, defect-corrected and stacked using AIP4WIN.
This image has been cropped down from its original size of 1376x1032 and rotated 90 degrees.