Circular formation. Forms a remarkable couple with Atlas.
Steep slopes supporting Hercules D to the South-East.
High walls with terraces supporting Hercules E to the South-West.
Flat floor containing Hercules crater G. Three hills. Stain sinks
in the enclosure.
Dimension: 71x71Km / 42x42Mi
Height: 3200m / 9700ft
Height/Wide ratio: 0.0464
Interest : Exceptional formation
Observation period: 6 days after New Moon or 5 days after Full Moon
Minimal Instrument: 50 mm refractor