Porter (Martian crater)
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| Porter | |
| Region | Aonia Terra |
|---|---|
| Coordinates | 50.8° S, 113.9° W |
| Diameter | 105 km |
| Eponym | Russell W. Porter |
Porter is a large-scale impact crater on the planet Mars, situated in Aonia Terra at 50.8° south and 113.9º west. The impact caused a bowl 105 kilometres (65 miles) across. The name was chosen in 1973 by the International Astronomical Union in honour of the US astronomer and explorer, Russell W. Porter (1871-1949).

