Innes (crater)

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Innes
Innes crater 5163 med.jpg
Lunar crater Innes as seen by Lunar Orbiter 5 (facing west)
Coordinates 27°48′N119°12′E / 27.8°N 119.2°E / 27.8; 119.2 Coordinates: 27°48′N119°12′E / 27.8°N 119.2°E / 27.8; 119.2
Diameter 42 km
Depth unknown
Colongitude 242° at sunrise
Eponym Robert T. A. Innes
Apollo 16 mapping camera image Innes crater AS16-M-3021 ASU.jpg
Apollo 16 mapping camera image

Innes is a lunar impact crater on the Moon's far side. It is located less than a crater diameter to the east-southeast of the prominent crater Seyfert. To the southeast of Innes is the crater Meggers, and to the west-southwest lies Polzunov.

Lunar craters

Lunar craters are impact craters on Earth's Moon. The Moon's surface has many craters, almost all of which were formed by impacts.

Impact crater Circular depression on a solid astronomical body formed by a hypervelocity impact of a smaller object

An impact crater is an approximately circular depression in the surface of a planet, moon, or other solid body in the Solar System or elsewhere, formed by the hypervelocity impact of a smaller body. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Impact craters range from small, simple, bowl-shaped depressions to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth.

Moon Earths natural satellite

Earth's Moon is an astronomical body that orbits the planet and acts as its only permanent natural satellite. It is the fifth-largest satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits. The Moon is, after Jupiter's satellite Io, the second-densest satellite in the Solar System among those whose densities are known.

Contents

This crater has not been significantly worn due to impact erosion, and the features remain well-defined. The shape is roughly circular with a slight outward bulge along the western edge. The inner walls have slumped somewhat, and some slight terracing has occurred. The interior floor is relatively featureless, and is marked only by a few tiny craterlets.

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 Innes.

InnesLatitudeLongitudeDiameter
G26.7° N122.3° E22 km
S27.6° N117.3° E33 km
Z29.8° N119.2° E33 km

See also

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References

Ewen Whitaker British astronomer

Ewen Adair Whitaker was a British-born astronomer who specialized in lunar studies. During World War II he was engaged in quality control for the lead sheathing of hollow cables strung under the English Channel as part of the "Pipe Line Under The Ocean" Project (PLUTO) to supply gasoline to Allied military vehicles in France. After the war, he obtained a position at the Royal Greenwich Observatory working on the UV spectra of stars, but became interested in lunar studies. As a sideline, Whitaker drew and published the first accurate chart of the South Polar area of the Moon in 1954, and served as director of the Lunar Section of the British Astronomical Association.

NASA space-related agency of the United States government

The National Aeronautics and Space Administration is an independent agency of the United States Federal Government responsible for the civilian space program, as well as aeronautics and aerospace research.

United States Geological Survey Scientific agency of the United States government

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility.