Oblique view of Dorsum Zirkel from Apollo 15, taken at a low sun angle Dorsum Zirkel is a

wrinkle ridge A wrinkle ridge is a type of feature commonly found on lunar maria, or basalt plains. These features are low, sinuous ridges formed on the mare surface that can extend for up to several hundred kilometers. Wrinkle ridges are tectonic features ...

at northeast of

Mons La Hire Mons La Hire is a solitary lunar mountain in the western Mare Imbrium. It is located to the northeast of the crater Euler, and to the west-northwest of Lambert. The selenographic coordinates of this feature are 27.8° N, 25.5° W, and it has ...

Mare Imbrium Mare Imbrium (Latin ''imbrium'', the "Sea of Showers" or "Sea of Rains") is a vast lunar mare, lava plain within the Imbrium Basin on the Moon and is one of the larger craters in the Solar System. The Imbrium Basin formed from the collision ...

on the

Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...

. It is 193 km long and was named after German geologist

Ferdinand Zirkel Prof Ferdinand Zirkel Royal Society of London, FRS(For) HFRSE (20 May 183811 June 1912) was a German geologist and petrography, petrographer. Biography Zirkel was born in Bonn. Educated in his native town, he graduated PhD from the University o ...

in 1976.Dorsum Zirkel
Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN) Two small craters, La Hire A and B, lie on either side of the dorsum. The large crater Lambert is to the southeast, and the smaller McDonald is to the northeast.

References

External links

{{DEFAULTSORT:Zirkel Ridges on the Moon Mare Imbrium