Hellas Planitia
Hellas Planitia /ˈhɛləs pləˈnɪʃiə/ is a plain located within the huge, roughly circular impact basin Hellas located in the southern hemisphere of the planet Mars. Hellas is the third- or fourth-largest known impact crater in the Solar System. The basin floor is about 7,152 m (23,465 ft) deep, 3,000 m (9,800 ft) deeper than the Moon's South Pole-Aitken basin, and extends about 2,300 km (1,400 mi) east to west. It is centered at 42.4°S 70.5°E. Hellas Planitia spans the boundary between the Hellas quadrangle and the Noachis quadrangle.
Viking orbiter image mosaic of Hellas Planitia | |
| Planet | Mars |
|---|---|
| Region | Hellas quadrangle, south of Iapygia |
| Coordinates | 42.4°S 70.5°E |
| Quadrangle | Hellas |
| Diameter | 2,300 km (1,400 mi) |
| Depth | 7,152 m (23,465 ft) |
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