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Virrat (crater)
Encyclopedia
Virrat is a Martian
impact crater, approximately 54 kilometres 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 a town in [Finland]], and its name was approved by the International Astronomical Union
in 1991. 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. At the highest point on its rim, it is about 6,400 metres above zero altitude, and it is about 5,100 metres at the crater bottom, giving it a depth of 1.3 kilometres.
Mars
Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...
impact crater, approximately 54 kilometres in diameter. It is located at 31.1°S, 103°W, southwest of the crater Dinorwic
Dinorwic (crater)
Dinorwic is a Martian impact crater, approximately 56 kilometers in diameter. It is located on the planet Mars at 30.4°S, 101.6°W, northeast of the crater Virrat and north of the crater Tugaske. To the northeast of Dinorwic is the crater Caxias, and farther north is the crater Llanesco. It is named...
and northeast of Clantas Fossae. Several Virrat crater radii to the north are the craters Koga
Koga (crater)
Koga is a Martian impact crater, approximately 19 kilometers in diameter. It is located at 29.3°S, 103.8°W, north of the crater Virrat and northeast of the crater Dinorwic. To the north is the crater Nhill. It is named after a town in Tanzania, and its name was approved by the International...
and Nhill
Nhill (crater)
Nhill is a Martian impact crater, 22 kilometers in diameter. It is located at 29°S, 103.4°W, southwest of the crater Llanesco and northwest of the crater Dinorwic. It is named after a town in Victoria, Australia, and its name was adopted by the International Astronomical Union in 1991...
. It is named after a town in [Finland]], and its name was approved by the International Astronomical Union
International Astronomical Union
The International Astronomical Union IAU is a collection of professional astronomers, at the Ph.D. level and beyond, active in professional research and education in astronomy...
in 1991. 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. At the highest point on its rim, it is about 6,400 metres above zero altitude, and it is about 5,100 metres at the crater bottom, giving it a depth of 1.3 kilometres.