Williams is an

impact crater An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact crater ...

Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin at ...

, located in the Memnonia quadrangle at 18.7°S latitude and 164.3°W longitude. It measures in diameter and was named after British astronomer Arthur S. Williams. The name was approved by IAU's

Working Group for Planetary System Nomenclature The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...

in 1973. 52438cameramap.jpg, Map showing the relative positions of Williams Crater and other nearby craters in Memnonia quadrangle

References

Memnonia quadrangle Impact craters on Mars {{crater-stub

See also

References