Bunsen (crater)

Bunsen
	Lunar Reconnaissance Orbiter image
Coordinates	41°24′N85°18′W / 41.4°N 85.3°W Coordinates: 41°24′N85°18′W / 41.4°N 85.3°W
Diameter	52 km
Depth	Unknown
Colongitude	86° at sunrise
Eponym	Robert W. Bunsen

Last updated August 07, 2019

Bunsen is a lunar impact crater that lies near the northwestern limb of the Moon. It is located to the west of the Oceanus Procellarum and the crater von Braun. To the southeast is the crater Lavoisier, and to the northeast lies Gerard. Northwest of Bunsen, on the far side of the Moon, is McLaughlin. Due to its position this crater appears foreshortened when viewed from the Earth, and its visibility is affected by libration.

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

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.

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.

This crater has become considerably worn and eroded by subsequent impacts, leaving a formation that has been described as disintegrated. The most intact portion of the rim is along the northeastern side. There is a smaller, crater-like formation intruding into the southeastern rim. Within the crater, the floor is pitted by tiny impacts, and has a rille system of criss-crossing clefts near the northern and southern rims. There is a low ridge near the southwest corner of the interior.

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 Bunsen.

Bunsen	Latitude	Longitude	Diameter
A	43.2° N	88.9° W	39 km
B	44.2° N	88.2° W	20 km
C	44.2° N	90.0° W	18 km
D	40.9° N	86.9° W	14 km

Related Research Articles

Anaximander is a lunar impact crater that is located near the northwest limb of the Moon. It is joined at the northern rim by the crater Carpenter, a younger and better-defined formation. To the southeast is the much larger J. Herschel, a formation of the variety known as a walled plain.

Abul Wafa is an impact crater located near the lunar equator on the far side of the Moon, named after the Persian mathematician and astronomer Abu al-Wafa' Buzjani. To the east are the crater pair Ctesibius and Heron. In the northeast lies the larger crater King, and to the southwest is Vesalius.

Appleton is a heavily eroded lunar impact crater that lies in the northern hemisphere on the far side of the Moon. To the northwest are the craters Von Neumann and Campbel. The smaller Golovin lies to the northeast, while further to the southwest is the Mare Moscoviense.

Boss is a lunar impact crater that is located along the northeast rim of the Moon's near side. Due to its location, the crater is viewed from the side by observers on the Earth, and its visibility is subject to libration effects.

Byrd is an irregular lunar impact crater that is located near the north pole of the Moon. The north rim of Byrd is nearly connected to the crater Peary, a formation that is adjacent to the pole. The smaller crater Gioja is attached to the remains of the southwest rim.

Balboa is a lunar impact crater that is located near the western limb of the Moon. Due to foreshortening, the crater appears highly oval when viewed from the Earth. In actuality, however, the formation is relatively circular. It is comparable in size to the crater Dalton, located just to the southwest. The eastern rim of Balboa lies just to the west of the Oceanus Procellarum.

Blanchinus is a lunar impact crater that is situated in the rugged south-central highlands of the Moon. The crater is named after Italian astronomer Giovanni Bianchini whose Latinized name is Blanchinus. Adjacent to the south of Blanchinus is the crater Werner, and La Caille is attached to the northwest rim. West of the crater is the prominent formation Purbach.

Boyle is a lunar impact crater that is located in the southern hemisphere on the rugged far side of the Moon. It is adjacent to the larger crater Hess to the southeast, and lies about midway between the craters Alder to the north-northeast and Abbe to the south-southwest.

Dawson is a lunar impact crater that lies on the southern hemisphere on the far side of the Moon. It lies across a crater triplet: the southeast rim is intruding into the crater Alekhin; the northwest rim also intrudes into the larger satellite crater Dawson V, and the northeast rim is attached to the comparably sized Dawson D. To the south of this formation is the large crater Zeeman. West of Dawson is the crater Crommelin, and to the north lies Fizeau.

Boltzmann is an old lunar impact crater that is located along the southern limb of the Moon, in the vicinity of the south pole. At this location the crater is viewed from the side from Earth, and so not much detail can be seen. It is located to the north of the walled plain Drygalski, and to the west of the crater Le Gentil.

Bolyai is an old lunar impact crater that is located in the southern hemisphere on the far side of the Moon. To the southeast of Bolyai is the crater Eötvös, and to the north is Neujmin. It is named after the 19th century Hungarian mathematician János Bolyai.

Casatus is a lunar impact crater that is located near the southern limb of the Moon. The north-northeast rim of the crater overlies a portion of the slightly larger crater Klaproth. Along the western rim, Casatus A intrudes somewhat into the interior, producing an inward-bowing rim. To the southeast of Casatus is Newton.

Gerard is a lunar impact crater that lies along the western edge of the Oceanus Procellarum near the northwest limb of the Moon's near side. It is located to the north-northwest of the crater von Braun, and northeast of Bunsen. Because of its location, Gerard appears strongly foreshortened when viewed from the Earth, hindering observation.

Demonax is a lunar impact crater near the southern limb of the Moon. This location makes the crater difficult to observe due to foreshortening. The crater is also illuminated at a very low angle, when it is in the sunlit side. Demonax lies just to the north of the crater Scott, one of the south polar formations. To the north-northwest is Boguslawsky.

Cleostratus is a lunar impact crater near the northwest limb of the Moon. It lies to the northeast of the crater Xenophanes, and west-southwest of the prominent Pythagoras. From the Earth this crater appears highly elongated due to foreshortening.

Challis is a lunar impact crater that is located in the northern regions of the Moon's near side, close enough to the limb to appear significantly foreshortened when viewed from the Earth. It is joined to the crater Main through a break in the northern rim, and is close to Scoresby along the southeast side.

Clairaut is a lunar impact crater that is located in the rugged southern highlands of the Moon's near side. It lies directly to the south of the crater Maurolycus and southeast of Barocius. Just to the southwest is Cuvier.

Chevallier is a lunar impact crater that is located in the northeastern part of the Moon's near side, about a crater diameter east-southeast of the prominent crater Atlas. To the south-southeast of Chevallier is the flooded crater Shuckburgh.

Cooper is a lunar impact crater that is located in the northern hemisphere on the far side of the Moon. It lies to the east of the large walled plain D'Alembert, and west-southwest of the crater Chappell.

Coriolis is a lunar impact crater that is located on the far side of the Moon. The crater floor is bisected by the lunar equator, and it lies about three crater diameters northwest of the crater Daedalus.

References

Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
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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.

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.

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.

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Lunar Reconnaissance Orbiter image
Coordinates	41°24′N85°18′W / 41.4°N 85.3°W / 41.4; -85.3 Coordinates: 41°24′N85°18′W / 41.4°N 85.3°W / 41.4; -85.3
Diameter	52 km
Depth	Unknown
Colongitude	86° at sunrise
Eponym	Robert W. Bunsen

v t e Craters on the Moon: A–B
A	Abbe Abbot Abel Abenezra Abetti Abul Wafa Abulfeda Acosta Adams Aepinus Agatharchides Agrippa Airy Aitken Akis Alan Al-Bakri Albategnius Albert Al-Biruni Alden Alder Aldrin Alekhin Alexander Alfraganus Alhazen Aliacensis Al-Khwarizmi Almanon Al-Marrakushi Aloha Alpetragius Alphonsus Alter Ameghino Amici Ammonius Amontons Amundsen Anaxagoras Anaximander Anaximenes Anděl Anders Anderson Andersson Andronov Ango Angström Ann Annegrit Ansgarius Antoniadi Anuchin Anville Apianus Apollo Apollonius Appleton Arago Aratus Archimedes Archytas Argelander Ariadaeus Aristarchus Aristillus Aristoteles Armiński Armstrong Arnold Arrhenius Artamonov Artem'ev Artemis Artsimovich Aryabhata Arzachel Asada Asclepi Ashbrook Aston Atlas Atwood Autolycus Auwers Auzout Avery Avicenna Avogadro Azophi
B	Baade Babakin Babbage Babcock Back Backlund Baco Baillaud Bailly Baily Balandin Balboa Baldet Ball Balmer Banachiewicz Bancroft Banting Barbier Barkla Barnard Barocius Barringer Barrow Bartels Bawa Bayer Beals Beaumont Becquerel Bečvář Beer Behaim Beijerinck Beketov Béla Bel'kovich Bell Bellinsgauzen Bellot Belopol'skiy Belyaev Benedict Bergman Bergstrand Berkner Berlage Bernoulli Berosus Berzelius Bessarion Bessel Bettinus Bhabha Bianchini Biela Bilharz Billy Bingham Biot Birkeland Birkhoff Birmingham Birt Bi Sheng Bjerknes Black Blackett Blagg Blancanus Blanchard Blanchinus Blazhko Bliss Bobillier Bobone Bode Boethius Boguslawsky Bohnenberger Bohr Bok Boltzmann Bolyai Bombelli Bondarenko Bonpland Boole Borda Borel Boris Borman Born Borya Bosch Boscovich Bose Boss Bouguer Boussingault Bowditch Bowen Boyle Brackett Bragg Brashear Braude Brayley Bredikhin Breislak Brenner Brewster Brianchon Bridgman Briggs Brisbane Bronk Brouwer Brown Bruce Brunner Buch Buffon Buisson Bullialdus Bunsen Burckhardt Bürg Burnham Büsching Butlerov Buys-Ballot Byrd Byrgius