Euclides (Crater)

Euclides
	Lunar Orbiter 4 image
Diameter	12 km
Depth	1.3 km
Colongitude	29° at sunrise

Short description: Crater on the Moon

Selenochromatic Image(Si) of the crater area

Euclides is a small lunar impact crater located near the eastern edge of Oceanus Procellarum, about 30 kilometers to the west of the Montes Riphaeus mountains. The mare in the vicinity is devoid of significant craters, but to the west is an area of low rises. The crater is named after the Greek mathematician Euclid.^[1]

Euclides is a bowl-shaped formation with a circular rim. It is surrounded by streaks of ejecta that have a higher albedo than the nearby maria. This nebulous skirt of light-hued material makes this feature very prominent under a high Sun, and it is one of the brightest sites on the Moon.

Euclides D

Euclides D is a small lunar impact crater in the Mare Cognitum. It has a diameter of 6 kilometers and a depth of 1.3 kilometers. It lies to the southeast of Euclides, beyond the Montes Riphaeus mountains.

In 1976, Euclides D was renamed Eppinger by the IAU to honor Hans Eppinger, a professor of pathological anatomy at Graz. However, in 2002, after Eppinger's association with Nazi prison camps had been brought to the attention of the IAU's Working Group for Planetary System Nomenclature, the name was reverted to Euclides D.^[2]

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 Euclides.

Euclides	Latitude	Longitude	Diameter	Ref
C	13.2° S	30.0° W	10.14 km	WGPSN
D	9.4° S	25.7° W	5.78 km	WGPSN
E	6.3° S	25.1° W	3.53 km	WGPSN
F	6.3° S	33.7° W	5.39 km	WGPSN
J	6.4° S	28.5° W	3.4 km	WGPSN
K	4.2° S	24.7° W	6 km	WGPSN
M	10.4° S	28.2° W	5.79 km	WGPSN
P	4.5° S	27.6° W	63.82 km	WGPSN

The following craters have been renamed by the IAU.

Euclides B — See Norman.

Gallery

Lunar Orbiter 4 image of Euclides D
Oblique Panoramic Camera image of Euclides from Apollo 16
Oblique regional view also from Apollo 16

References

↑ "Gazetteer of Planetary Nomenclature | Euclides". International Astronomical Union. http://planetarynames.wr.usgs.gov/Feature/1860.
↑ "IAU Removes Designation Of Lunar Crater Named For Suspected Nazi War Criminal". 9 August 2002. http://lunasociety.net/eppinger-lunar-crater.

Enersen, Ole Daniel (2007). "Hans Eppinger". Who Named It?. http://www.whonamedit.com/doctor.cfm/2815.html.
Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1. https://archive.org/details/isbn_9780936389271.
McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. http://host.planet4589.org/astro/lunar/.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews 12 (2): 136–186. doi:10.1007/BF00171763. Bibcode: 1971SSRv...12..136M.
Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 978-0-304-35469-6. https://archive.org/details/patrickmooreonmo00patr.
Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3. https://archive.org/details/celestialobjects00webb.
Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.

External links

LTO-76D1 Eppinger — L&PI topographic map

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[1] "Gazetteer of Planetary Nomenclature | Euclides". International Astronomical Union. http://planetarynames.wr.usgs.gov/Feature/1860.

[2] "IAU Removes Designation Of Lunar Crater Named For Suspected Nazi War Criminal". 9 August 2002. http://lunasociety.net/eppinger-lunar-crater.

v t e Craters on the Moon: C–F
C	C. Herschel C. Mayer Cabannes Cabeus Cailleux Cai Lun Cajal Cajori Calippus Cameron Campanus Campbell Cannizzaro Cannon Cantor Capella Capuanus Cardanus Carlini Carlos Carmichael Carnot Carol Carpenter Carrel Carrillo Carrington Cartan Carver Casatus Cassegrain Cassini Catalán Catharina Cauchy Cavalerius Cavendish Caventou Cayley Celsius Censorinus Cepheus Chacornac Chadwick Chaffee Challis Chalonge Chamberlin Champollion Chandler Chang Heng Chang-Ngo Chant Chaplygin Chapman Chappe Chappell Charles Charlier Chaucer Chauvenet Chawla Chebyshev Chernyshev Chevallier Ching-Te Chladni Chrétien Cichus Clairaut Clark Clausius Clavius Cleomedes Cleostratus Clerke Coblentz Cockcroft Collins Colombo Compton Comrie Comstock Condon Condorcet Congreve Conon Cook Cooper Copernicus Cori Coriolis Couder Coulomb Courtney Cremona Crile Crocco Crommelin Crookes Crozier Crüger Ctesibius Curie Curtis Curtius Cusanus Cuvier Cyrano Cyrillus Cysatus
D	D. Brown da Vinci Daedalus Dag Daguerre Dale d'Alembert Dalton Daly Damoiseau Daniell Danjon Dante Darney D'Arrest D'Arsonval Darwin Das Daubrée Davisson Davy Dawes Dawson De Forest de Gasparis de Gerlache De La Rue De Moraes De Morgan De Roy De Sitter De Vico De Vries Debes Debus Debye Dechen Delambre Delaunay Delia Delisle Dellinger Delmotte Delporte Deluc Dembowski Democritus Demonax Denning Desargues Descartes Deseilligny Deslandres Deutsch Dewar Diana Diderot Dionysius Diophantus Dirichlet Dobrovol'skiy Doerfel Dollond Donati Donna Donner Doppelmayer Doppler Douglass Dove Draper Drebbel Dreyer Drude Dryden Drygalski Dubyago Dufay Dugan Dunér Dunthorne Dyson Dziewulski
E	Eckert Eddington Edison Edith Egede Ehrlich Eichstadt Eijkman Eimmart Einstein Einthoven Elger Ellerman Ellison Elmer Elvey Emden Encke Endymion Engel'gardt Eötvös Epigenes Epimenides Eratosthenes Erlanger Erro Esclangon Esnault-Pelterie Espin Euclides Euctemon Eudoxus Euler Evans Evdokimov Evershed Ewen
F	Fabbroni Fabricius Fabry Fahrenheit Fairouz Faraday Faustini Fauth Faye Fechner Fedorov Felix Fényi Feoktistov Fermat Fermi Fernelius Fersman Fesenkov Feuillée Fibiger Finsch Finsen Firmicus Firsov Fischer Fitzgerald Fizeau Flammarion Flamsteed Fleming Florensky Florey Focas Fontana Fontenelle Foster Foucault Fourier Fowler Fox Fra Mauro Fracastorius Franck Franklin Franz Fraunhofer Fredholm Freud Freundlich Fridman Froelich Frost Fryxell Furnerius