Virrat (crater) explained

Titlecolor:
  1. FA8072
Virrat
Coordinate Title:Coordinates
Globe:Mars
Coordinates:-30.73°N 257.12°W
Eponym:Virrat, Finland

Virrat is an impact crater on Mars, 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.[1] According to a surface age map of Mars based on US Geological Survey data, the area around Virrat is from the Noachian epoch, which places the area's age at 3.8 to 3.5 billion years ago.[2] 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 .[1]

Notes and References

  1. NASA World Wind 1.4. NASA Ames Research Center, 2007.
  2. Web site: Integrating Global-Scale Mission Datasets – Understanding the Martian Crust . lpi.usra.edu . October 22, 2007.