Lemaître is a
lunar
Lunar most commonly means "of or relating to the Moon".
Lunar may also refer to:
Arts and entertainment
* ''Lunar'' (series), a series of video games
* "Lunar" (song), by David Guetta
* "Lunar", a song by Priestess from the 2009 album ''Prior t ...
impact crater that is located on the southern
hemisphere
Hemisphere refers to:
* A half of a sphere
As half of the Earth
* A hemisphere of Earth
** Northern Hemisphere
** Southern Hemisphere
** Eastern Hemisphere
** Western Hemisphere
** Land and water hemispheres
* A half of the (geocentric) celestia ...
on the
far side
''The Far Side'' is a single-panel comic created by Gary Larson and syndicated by Chronicle Features and then Universal Press Syndicate, which ran from December 31, 1979, to January 1, 1995 (when Larson retired as a cartoonist). Its surrealis ...
of the
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
. It lies to the south of the older crater
Minkowski, and north of
Crommelin. To the east-southeast lies the crater
Eijkman
Christiaan Eijkman ( , , ; 11 August 1858 – 5 November 1930) was a Dutch physician and professor of physiology whose demonstration that beriberi is caused by poor diet led to the discovery of antineuritic vitamins (thiamine). Together with S ...
.
The outer rim of Lemaître remains well-defined, although it has become eroded and rounded by a history of minor impacts. The rim is generally circular, but it has a
polygon
In geometry, a polygon () is a plane figure that is described by a finite number of straight line segments connected to form a closed ''polygonal chain'' (or ''polygonal circuit''). The bounded plane region, the bounding circuit, or the two toge ...
al, angular outline, particularly in the southeastern half. For much of circumference, the inner wall consists of a rim that slopes down to a slumped
terrace
Terrace may refer to:
Landforms and construction
* Fluvial terrace, a natural, flat surface that borders and lies above the floodplain of a stream or river
* Terrace, a street suffix
* Terrace, the portion of a lot between the public sidewalk a ...
, which then slopes down more gently to the interior floor.
There are a few tiny craterlets lying along the rim of Lemaître, especially in the west and the southeast. The most notable of these craterlets is a small, bowl-shaped crater that is attached to the southwestern rim.
The floor of the crater is generally flat, but contains a prominent crater Lemaître F along the eastern inner wall. This crater is also somewhat angular in shape, especially in the parts that are not concentric with the inner wall. The remainder of the floor is marked with a few tiny craterlets, the largest of which is adjacent to the western interior wall.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Lemaître.
The floor of the satellite crater Lemaître F (within Lemaître itself) may be the lowest point on the moon.
See also
*
1565 Lemaître
1565 Lemaître, provisional designation , is a highly eccentric Phocaea asteroid and sizable Mars-crosser from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 25 November 1948, by Belgian astro ...
, asteroid
References
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{{DEFAULTSORT:Lemaitre (crater)
Impact craters on the Moon