Capella (crater)

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For other uses, see Capella.
Capella (crater)
Capella (right) and Isidorus (center) from Apollo 16. NASA photo.
Coordinates 7°36′S 34°54′E / 7.6°S 34.9°E / -7.6; 34.9Coordinates: 7°36′S 34°54′E / 7.6°S 34.9°E / -7.6; 34.9
Diameter 49 km
Depth 3,5 km
Colongitude 325° at sunrise
Eponym Martianus Capella

Capella is a lunar crater 49 km (30 mi) in diameter that lies to the north of the Mare Nectaris, in a rugged region with many small impact craters. It intrudes slightly into the eastern rim of the crater Isidorus, a feature only slightly smaller in diameter.

The wall of Capella is low but relatively thick and irregular, with a large promontory intruding on the south-eastern side. The crater is crossed by a deep rift, the Vallis Capella, which passes directly through Capella from the north rim through the southeast side of the wall, and extends out both sides for a combined distance of 110 kilometers. This feature was formed by a chain of craters. In the middle of the crater is a wide, round peak with a craterlet at the top. The western side of the crater is dotted with impact debris, forming clusters of small hills.

The crater was named for Marcianus Capella, a writer of Late Antiquity.

Satellite craters[edit]

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Capella.

Capella Latitude Longitude Diameter
A 7.6° S 37.2° E 13 km
B 9.4° S 36.8° E 10 km
C 5.7° S 36.3° E 11 km
D 6.7° S 37.6° E 8 km
E 7.5° S 37.7° E 16 km
F 9.2° S 35.4° E 14 km
G 6.8° S 36.9° E 12 km
H 8.1° S 37.4° E 9 km
J 9.4° S 36.0° E 9 km
M 4.4° S 37.0° E 12 km
R 6.0° S 35.2° E 7 km
T 6.9° S 34.2° E 6 km