Vallis Baade is a 203 km long sinuous valley 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...

 running south-southeast from the crater Baade

Baade (crater)

Baade is a lunar impact crater that is located near the southwest limb of the Moon on the near side, to the southwest of the enormous Mare Orientale impact basin. The area to the east of this crater forms the junction between the 280-km-long Vallis Bouvard to the north and the narrower,...

 and centered at (south of the Montes Cordillera

Montes Cordillera

Montes Cordillera is a mountain range on the Moon. This feature forms the outer wall of peaks that surround the Mare Orientale impact basin, the inner ring being formed by the Montes Rook...

). It has the same namesake as the crater, the German astronomer Walter Baade

Walter Baade

Wilhelm Heinrich Walter Baade was a German astronomer who worked in the USA from 1931 to 1959.-Biography:He took advantage of wartime blackout conditions during World War II, which reduced light pollution at Mount Wilson Observatory, to resolve stars in the center of the Andromeda galaxy for the...

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This is one of several valleys that radiate away from the southeast edge of the Mare Orientale

Mare Orientale

Mare Orientale is one of the most striking large scale lunar features, resembling a target ring bull's-eye. Located on the extreme western edge of the lunar nearside, this impact basin is difficult to see from an Earthbound perspective.Material from this basin was not sampled by the Apollo program...

 circular impact basin, the other two being Vallis Inghirami and Vallis Bouvard

Vallis Bouvard

Vallis Bouvard is a 284-km-long valley on the Moon, centered at . It begins at the southern rim of the crater Shaler, and winds its way to the south-southeast towards Baade. This is one of several such valleys that radiate away from the southeast edge of the Mare Orientale circular impact basin,...

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