Hase (crater)

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Hase
Hase (LRO).png
Craters Hase (upper) and Hase D (lower)
Coordinates 29°22′S62°41′E / 29.37°S 62.68°E / -29.37; 62.68 Coordinates: 29°22′S62°41′E / 29.37°S 62.68°E / -29.37; 62.68
Diameter 83 km
Depth 2.5 km
Colongitude 299° at sunrise
Eponym Johann M. Hase
Oblique Lunar Orbiter 4 image, facing west Hase crater 4184 h2.jpg
Oblique Lunar Orbiter 4 image, facing west

Hase is a lunar impact crater that is located in the rugged southeast part of the Moon, to the south-southwest of the prominent walled plain Petavius. Palitzsch and Vallis Palitzsch are attached to the northeastern rim of Hase.

Lunar craters craters on Earths moon

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

The Moon is an astronomical body that orbits the Earth 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.

The rim of this crater has been damaged and eroded by a long history of subsequent impacts. The most prominent of these is Hase D, a comparably sized crater that has overlain the southern rim, leaving only a low rim between the two formations. Hase A is a small crater that lies in the interior of Hase, near the irregular northern rim. The remainder of the floor is rough and irregular.

To the southeast of Hase D is a system of linear rilles designated Rimae Hase. Their north-western extension transects western part of Hase and Hase D.

Rille fissure, especially on the Moon

Rille is typically used to describe any of the long, narrow depressions in the surface of the Moon that resemble channels. The Latin term is rima, plural rimae. Typically a rille can be up to several kilometers wide and hundreds of kilometers in length. However, the term has also been used loosely to describe similar structures on a number of planets in the Solar System, including Mars, Venus, and on a number of moons. All bear a structural resemblance to each other.

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 Hase.

HaseCoordinatesDiameter, km
A 29°04′S62°56′E / 29.06°S 62.94°E / -29.06; 62.94 (Hase A) 15
B 31°31′S60°04′E / 31.51°S 60.06°E / -31.51; 60.06 (Hase B) 20
D 31°07′S63°18′E / 31.11°S 63.30°E / -31.11; 63.30 (Hase D) 57

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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.

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.