My first image in nearly 3 years ... happy chappie again!
NGC 4731 is not a particularly glamorous galaxy because it's so small (6.7 x 4.1 arc minutes) and lacks lots of colourful Ha blobs to enhance. Consequently, it's rarely imaged. It was a good and reasonably challenging first light target though. I reckon it's quite a pretty little thing though!
It's 65 million light years away and is a member of the Virgo cluster. The small galaxy to the lower left is an irregular galaxy designated NGC 4731A. There is also a galaxy out of frame (the giant elliptical NGC 4697) that has gravitationally distorted NGC 4731. Naturally, there are also a myriad tiny distant galaxies in the full frame.
This is a 15.3 hour LLsRGB (Luminance, synthetic luminance, red, green and blue) exposure.
Full Res crop HERE
Full Frame to swim around in HERE
Note: in the full frame there are a couple bright stars outside the FOV at the top right of centre that left some artefacts