L74 Copernicus HDark-halo impact crater 2020-03-3 19:58:21 UT 70.4% illuminated 250mm f4.8 Newtonian ZWO ASI290mcMarkarian2020-04-04T20:47:34+00:004 April 2020|L51-75|Share This Story, Choose Your Platform!FacebookTwitterRedditLinkedInTumblrPinterestVkEmail