Dorsum Gast
Encyclopedia
Dorsum Gast is a wrinkle ridge at in Mare Serenitatis
Mare Serenitatis
Mare Serenitatis is a lunar mare that sits just to the east of Mare Imbrium on the Moon.It is located within the Serenitatis basin, which is of the Nectarian epoch. The material surrounding the mare is of the Lower Imbrian epoch, while the mare material is of the Upper Imbrian epoch...

 on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

. It is 60 km long and was named after Paul Werner Gast
Paul Werner Gast
Paul Werner Gast was an American geochemist and geologist.He was born in Chicago, and attended Wheaton College, Illinois from whence he graduated in 1952. He earned a Ph.D. from Columbia University in 1957...

in 1973.
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