Archimedes (moon crater)

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Archimedes
Archimedes crater AS15-M-1542.jpg
Archimedes Crater captured by Apollo 15 ( NASA photo)
Archimedes (moon equatorial region)
Archimedes
position 29.71 °  N , 3.99 °  W Coordinates: 29 ° 42 '36 "  N , 3 ° 59' 24"  W.
diameter 81 km
depth 1600 m
Card sheet 41 (PDF)
Named after Archimedes (287–212 BC)
Named since 1935
Unless otherwise stated, the information comes from the entry in the IAU / USGS database

81.04

Archimedes is a large impact crater on Earth's moon on the eastern bank of the Mare Imbrium . The mountain region of the Montes Archimedes rises south of the crater . On the southeastern edge extends the plain of the Palus Putredinis , which is traversed by a system of grooves named after the crater, the Rimae Archimedes with a length of more than 150 kilometers . To the north-northeast rise the Montes Spitzbergen , a chain of peaks in the Mare Imbrium. To the east of Archimedes is the Autolycus crater. The lunar surface between these two structures formed the crash site of the Soviet lunar probe Lunik 2 , which was the first robotic spacecraft to reach the lunar surface on September 13, 1959. In the northwest, the Aristillus crater catches the eye. The lava plain between Archimedes , Aristillus and Autolycus forms the Luna Bay of the Mare Imbrium. A sea ridge beginning at Archimedes crosses this lunar sea in a north-northwest direction.

Archimedes is the largest crater in the Mare Imbrium. The rim of the crater shows an outer wall covered with ejecta and the upper part of a stepped inner wall, but the radiation system of younger craters is missing. A triangular promontory protrudes 30 kilometers to the southeast.

There is no central elevation inside the crater and it is flooded by Maria . There are no conspicuous bumps at all, there are only a few tiny impacts near the edge. Scattered across the crater floor are individual stripes of bright radiation material that were most likely deposited there when Autolycus was formed.

List of Archimedes' minor craters
Letter position diameter link
C. 31.62 °  N , 1.54 °  W 8 kilometers [1]
D. 32.19 °  N , 2.7 °  W 5 km [2]
E. 24.99 °  N , 7.21 °  W 3 km [3]
G 29.14 °  N , 8.16 °  W 3 km [4]
H 23.87 °  N , 7.03 °  W 4 km [5]
L. 25.03 °  N , 2.62 °  W 3 km [6]
M. 26.1 °  N , 3.22 °  W 3 km [7]
N 24.14 °  N , 3.89 °  W 4 km [8th]
P 25.92 °  N , 2.5 °  W 3 km [9]
Q 28.49 °  N , 2.44 °  W 2 km [10]
R. 26.07 °  N , 6.62 °  W 4 km [11]
S. 29.53 °  N , 2.73 °  W 3 km [12]
T 30.28 °  N , 5.04 °  W 2 km [13]
U 32.82 °  N , 1.97 °  W 3 km [14]
V 32.97 °  N , 4.03 °  W 3 km [15]
W. 23.79 °  N , 6.25 °  W 3 km [16]
X 31.02 °  N , 8.03 °  W 2 km [17]
Y 29.97 °  N , 9.5 °  W 2 km [18]
Z 26.86 °  N , 1.42 °  W 2 km [19]

The following Archimedes satellite craters have meanwhile been given their own name by the International Astronomical Union (IAU):

Individual evidence

  1. ^ John Edward Westfall: Atlas of the Lunar Terminator. Cambridge University Press, Cambridge 2000, ISBN 0-521-59002-7 , p. 269

Web links