McMath is an
impact crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters ...
on 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 ...
's
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 ...
. It lies to the south-southwest of the prominent crater
Jackson
Jackson may refer to:
People and fictional characters
* Jackson (name), including a list of people and fictional characters with the surname or given name
Places
Australia
* Jackson, Queensland, a town in the Maranoa Region
* Jackson North, Q ...
, and material from the
ray system
A ray system comprises radial streaks of fine '' ejecta'' thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up to several times the diameter ...
centered on Jackson lies across most of McMath. Farther to the south lies the crater pair of
Zhukovskiy and
Lebedinskiy.
This is a worn, torn up, and eroded crater formation with several small craters along the rim edge. The rim is the most heavily worn at the northern end, but is more intact to the east and west. The interior floor is relatively level, and is marked by only a few tiny craterlets.
McMath lies to the northwest of the
Dirichlet-Jackson Basin.
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 McMath.
See also
*
1955 McMath
1955 McMath, provisional designation , is a stony Koronis asteroid from the outer region of the asteroid belt, approximately 10 kilometers in diameter.
It was discovered on 22 September 1963, by Indiana University's Indiana Asteroid Program at it ...
, minor planet
References
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Impact craters on the Moon