Sinas (crater)

Sinas is a small lunar impact crater that lies in the eastern part of the Moon on the Mare Tranquillitatis, named after the Greek magnate Simon Sinas. This is an isolated formation that is located very near the midpoint of the lunar mare. Sinas is circular and bowl-shaped, with a small floor at the midpoint. A wrinkle ridge intersects the east edge of the crater, and several lunar domes lie to the north.

Nearby craters include Jansen and Carrel to the northwest, Aryabhata to the southeast, and Maskelyne to the south.

Its diameter is 12 km long and is 2,300 meters deep. The area is about 100 km² and the perimeter is about 35 km.

Sinas crater AS15-M-2135
Apollo 15 Mapping Camera image. Sinas near center, Sinas E in upper left, and Sinas A in lower right
Coordinates 8°48′N 31°36′E / 8.8°N 31.6°ECoordinates: 8°48′N 31°36′E / 8.8°N 31.6°E
Diameter 12 km
Depth 2.3 km
Colongitude 329° at sunrise
Eponym Simon Sinas


Sinas crater as08-13-2346hr

Oblique view at low sun angle from Apollo 8, and one of the lunar domes is at right

Sinas crater AS11-42-6317

Oblique view at low sun angle from Apollo 11

Sinas crater AS15-P-9855

Apollo 15 panoramic camera image, at a high sun angle

Satellite craters

Sinas sattelite craters map
Satellite craters of Sinas

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Sinas. Sinas A is southeast, Sinas E is northwest at a shorter distance. Sinas G, H and J are east-northeast at a longer distance and K is further southeast.

Sinas Latitude Longitude Diameter
A 7.8° N 32.6° E 6 km
E 9.7° N 31.0° E 9 km
G 9.6° N 34.3° E 5 km
H 10.0° N 33.5° E 6 km
J 10.3° N 33.7° E 6 km
K 6.8° N 33.1° E 5 km


External links

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