Chaplygin (crater)
Encyclopedia
Chaplygin is a large lunar
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...

 impact crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...

 that lies on the far side of 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 located to the southeast of the huge walled plain Mendeleev
Mendeleev (crater)
Mendeleev is a large lunar impact crater that is located on the far side of the Moon, as seen from the Earth. The southern rim of this walled plain just crosses the lunar equator. Intruding into the eastern rim of Mendeleev is the crater Schuster...

, about mid-way between the craters Schliemann
Schliemann (crater)
Schliemann is a lunar impact crater on the far side of the Moon. It is located just to the northwest of the somewhat larger crater Ventris, and to the northeast of the prominent Chaplygin. Farther to the northeast of Schliemann is the large Mandel'shtam....

 to the northeast and Marconi
Marconi (crater)
Marconi is a lunar impact crater that is located on the Moon's far side. It lies to the northwest of the large walled plain Gagarin, and to the southwest of the prominent crater Chaplygin. To the west-northwest of Marconi is the slightly larger Dellinger....

 to the southwest. It is about the same size as Albategnius
Albategnius (crater)
Albategnius is an ancient lunar impact crater located in the central highlands. It is named after the Muslim astronomer and scientist Al-Battani. The level interior forms a "walled plain", surrounded by the high, terraced rim. The outer wall is somewhat hexagon-shaped, and has been heavily eroded...

 on the near side.

The rim of this crater is roughly circular, but with an uneven edge. The inner wall is terraced around much of the circumference, but this structure is somewhat disrupted along the southern side. The rim is only mildly eroded, with few craters around the edge — the exception being Chaplygin K which is intruding into the inner wall along the southeast side. Within the walls is an interior plain that is level and smooth in comparison to the rugged terrain that surrounds the exterior of the crater. There is a central peak near the mid-point, and a few tiny craters lie scattered across the surface.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Chaplygin.
Chaplygin Latitude Longitude Diameter
K 7.7° S 151.2° E 19 km
Q 7.7° S 147.8° E 12 km
Y 2.8° S 149.7° E 29 km
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