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Calippus (crater)

Calippus is a small lunar impact crater that is located on the eastern edge of the rugged Montes Caucasus mountain range in the northern part of the Moon. It was named after Greek astronomer Callippus of Cyzicus. It lies to the southwest of the crater remnant Alexander, to the northwest of the Mare Serenitatis.

The outer rim of Calippus has an irregular appearance, with outward bulges to the northeast and particularly to the west where there is an interior shelf of slumped material. The exterior has a slight rampart that is surrounded by the rugged terrain of the mountain range. Within the sharp-sided interior walls is a rough and irregular interior floor.

To the southeast of this crater, on the edge of the Mare Serenitatis, is an arcing rille designated Rima Calippus. This cleft follows a path to the northeast for a length of about 40 kilometers.

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 Calippus.

Calippus	Latitude	Longitude	Diameter
A	37.0° N	7.9° E	16 km
B	36.0° N	10.0° E	7 km
C	39.6° N	9.1° E	40 km
D	36.3° N	11.3° E	4 km
E	38.9° N	11.9° E	5 km
F	40.5° N	10.0° E	6 km
G	41.3° N	11.5° E	4 km

References

^ "Calippus (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

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.
McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.
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. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID 122125855.
Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
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.
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.

Wikimedia Commons has media related to Calippus (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 Dandelion 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 Dobrovolʹskiy 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 Engelʹgardt 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

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