Virrat is an
impact crater on
Mars, approximately in diameter. It is located at 31.1°S, 103°W, southwest of the crater
Dinorwic and northeast of
Clantas Fossae. Several Virrat crater radii to the north are the craters
Koga and
Nhill. It is named after
Virrat, a town in
Finland.
['']NASA World Wind
NASA WorldWind is an open-source (released under the NOSA license and the Apache 2.0 license) virtual globe. According to the website (https://worldwind.arc.nasa.gov/), "WorldWind is an open source virtual globe API. WorldWind allow ...
'' 1.4. NASA Ames Research Center, 2007. According to a surface age map of Mars based on
US Geological Survey data, the area around Virrat is from the
Noachian epoch
The Noachian is a geologic system and early time period on the planet Mars characterized by high rates of meteorite and asteroid impacts and the possible presence of abundant surface water. The absolute age of the Noachian period is uncertai ...
, which places the area's age at 3.8 to 3.5 billion years ago.
At the highest point on its rim, it is about above zero altitude, and it is about at the crater bottom, giving it a depth of .
References
Impact craters on Mars
Thaumasia quadrangle
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