Virrat 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 ...

, 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 KOGA is a Dutch bicycle manufacturer based in Heerenveen, Friesland. The company is known for its long time partnership with Japanese frame manufacturer Miyata, producing bicycles and sponsoring racing teams under the brand name Koga Miyata. As ...

and

Nhill Nhill is a town in the Wimmera, in western Victoria, Australia. Nhill is located on the Western Highway, halfway between Adelaide and Melbourne. At the , Nhill had a population of 1,749. "Nhill" is believed to be a Wergaia word meaning "early ...

. It is named after

Virrat Virrat (; sv, Virdois) is a town and municipality of Finland. It is part of the Pirkanmaa region, and it is located north of Tampere and west of Jyväskylä. The distance between Virrat and Helsinki is . The town has a population of ...

, a town in

Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...

.''

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 The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and ...

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. 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 {{Mars-stub