Concentric crater Archytas G (bigger one) and a smaller unnamed crater, also with signs of concentricity, on the Moon, in Mare Frigoris, on an intrusive dome (look <a rel="nofollow" class="external text" href="http://www.lpi.usra.edu/meetings/lpsc2009/pdf/1091.pdf">Wöhler &amp; Lena, 2009</a>). Diameter of Archytas G is 7.3 km. It is number 1 in <a rel="nofollow" class="external text" href="http://articles.adsabs.harvard.edu//full/1978LPI.....9.1264W/0001266.000.html">the list of concentric craters by Wood, 1978</a> (the smaller one is not included). 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 on 3 January 2013 from altitude 156 km. Sun elevation is 11.0°. Width of the photo is 16×13.5 km, north is approximately up (to make it precisely on the top, the image must be rotated 2.4° cw, but if so, good cropping would be impossible).
NASA
2013-01-03
Images <a rel="nofollow" class="external text" href="http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M1111820874LE">M1111820874LE</a> and <a rel="nofollow" class="external text" href="http://wms.lroc.asu.edu/lroc/view_lroc/LRO-L-LROC-2-EDR-V1.0/M1111820874RE">M1111820874RE</a> by <a href="https://en.wikipedia.org/wiki/Lunar_Reconnaissance_Orbiter" class="extiw" title="en:Lunar Reconnaissance Orbiter">Lunar Reconnaissance Orbiter</a>. The image was flipped to make north on the top and east on the right, and brightness was increased. Resolution was decreased 2 times to reduce file size.