Theophilus Crater – diameter is 100 km and named after the Greek astronomer (c. 412 AD). The rim of Theophilus has a wide, terraced inner surface that shows indications of landslips. The floor of the crater is relatively flat, and it has a large, triple-peaked central crater that climbs to a height of about 2 kilometers above the floor (Wikipedia).
Tech Specs: ZWO ASI290MC camera and Meade 12” LX90 telescope mounted on a Celestron CGEM-DX mount. Software used included Sharpcap v2.9 and AutoStakkert! Alpha Version 2.3.0.21. Photographed on February 2, 2017 from Weatherly, Pennsylvania.