These two galaxies, along with nearby NGC 3991, form a cluster that Arp designated as #313 in his Atlas of Peculiar Galaxies. He saw "linear strings of knots, like deformed spiral arms" in 3995. I saw spots of uneven brightness in both galaxies.
Drawn with 2B and 4H pencils on Canson drawing pad, and processed with GIMP 2.8 software.
Edited by hokkaido53, 12 July 2018 - 12:22 PM.