Circular formation forming a remarkable trio with Cyrillus and Catharina.
Tormented and steep slopes overhanging Sinus Asperitatis from 1200m
and supporting Cyrillus to the South-East Theophilus F to the West
and Mädler to the
Very high walls with terraces overlapped by Theophilus B to the
Flat floor. Imposing central mountain 1 400 m high with 4 summits.
Line of crests hills and craterlets.
Dimension: 104x104Km / 61x61Mi
Height: 4400m / 13300ft
Height/Wide ratio: 0.044
Interest : Exceptional formation
Observation period: 5 days after New Moon or 4 days after Full Moon
Minimal Instrument: 10x binoculars