An unnamed concentric crater on the Moon, in <a href="https://en.wikipedia.org/wiki/Apollo_(crater)" class="extiw" title="en:Apollo (crater)">Apollo Basin</a>. Diameter is 11.5 km. Photo by <a href="https://en.wikipedia.org/wiki/Lunar_Reconnaissance_Orbiter" class="extiw" title="en:Lunar Reconnaissance Orbiter">Lunar Reconnaissance Orbiter</a>, made with Narrow Angle Camera, looking to the east (north at right).
NASA
2013-08-13
<a rel="nofollow" class="external free" href="http://lroc.sese.asu.edu/posts/719">http://lroc.sese.asu.edu/posts/719</a> (primary source - images <a rel="nofollow" class="external text" href="http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M1097537923RE">M1097537923RE</a> and <a rel="nofollow" class="external text" href="http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M1097537923LE">M1097537923LE</a> by <a href="https://en.wikipedia.org/wiki/Lunar_Reconnaissance_Orbiter" class="extiw" title="en:Lunar Reconnaissance Orbiter">Lunar Reconnaissance Orbiter</a>)