Timaeus (crater)
Encyclopedia
Timaeus is a lunar
crater
in the northern part of the Moon
, on the north edge of Mare Frigoris
. It forms part of the southwestern wall of the large and irregular walled plain W. Bond
. The rim of Timaeus is somewhat pentagon
al in shape, with rounded corners. There is a central rise in the mid-point of the crater floor.
The irregular terrain to the west of Timaeus displays a degree of streaky parallelism, as was noted by the Rev. T. W. Webb
. These follow a path slightly to the east of north.
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...
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...
in the northern part 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...
, on the north edge of Mare Frigoris
Mare Frigoris
Mare Frigoris is a lunar mare located just north of Mare Imbrium, and stretches east to north of Mare Serenitatis. The mare is in the outer rings of the Procellarum basin...
. It forms part of the southwestern wall of the large and irregular walled plain W. Bond
W. Bond (crater)
W. Bond is an irregularly shaped lunar walled plain that is located in the northern part of the Moon, to the north of the Mare Frigoris. It lies to the east of the crater Birmingham, and south-southwest of Barrow. Epigenes is located just to the northwest of the outer rim. Along the southwest edge,...
. The rim of Timaeus is somewhat pentagon
Pentagon
In geometry, a pentagon is any five-sided polygon. A pentagon may be simple or self-intersecting. The sum of the internal angles in a simple pentagon is 540°. A pentagram is an example of a self-intersecting pentagon.- Regular pentagons :In a regular pentagon, all sides are equal in length and...
al in shape, with rounded corners. There is a central rise in the mid-point of the crater floor.
The irregular terrain to the west of Timaeus displays a degree of streaky parallelism, as was noted by the Rev. T. W. Webb
Thomas William Webb
The Reverend Thomas William Webb was a British astronomer. Some sources give his year of birth as 1806. The only son of a clergyman, the Rev. John Webb, he was raised and educated by his father, his mother having died while Thomas was a small child. He went to Oxford where he attended Magdalen...
. These follow a path slightly to the east of north.