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- Pettit_(Martian_crater) abstract "Pettit Crater is a crater in the Amazonis quadrangle of Mars, located at 12.39° north latitude and 173.87° west longitude. It is 92.49 km in diameter and was named after Edison Pettit, an American astronomer (1890–1962). Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak. The peak is caused by a rebound of the crater floor following the impact. If one measures the diameter of a crater, the original depth can be estimated with various ratios. Because of this relationship, researchers have found that many Martian craters contain a great deal of material; much of it is believed to be ice deposited when the climate was different. Sometimes craters expose layers that were buried. Rocks from deep underground are tossed onto the surface. Hence, craters can show us what lies deep under the surface.A pedestal crater is a crater with its ejecta sitting above the surrounding terrain and thereby forming a raised platform. This type of crater forms when an impact crater ejects material which forms an erosion resistant layer, thus protecting the immediate area from erosion. As a result of this hard covering, the crater and its ejecta become elevated when erosion removes the softer material that lies beyond the ejecta. Some pedestals have been accurately measured to be hundreds of meters above the surrounding area. This means that hundreds of meters of material were eroded away. Pedestal craters were first observed during the Mariner missions.".
- Pettit_(Martian_crater) diameter "92490.0".
- Pettit_(Martian_crater) location Mars.
- Pettit_(Martian_crater) thumbnail Martian_crater_Pettit_based_on_day_THEMIS.png?width=300.
- Pettit_(Martian_crater) wikiPageID "22053960".
- Pettit_(Martian_crater) wikiPageLength "6974".
- Pettit_(Martian_crater) wikiPageOutDegree "20".
- Pettit_(Martian_crater) wikiPageRevisionID "682449835".
- Pettit_(Martian_crater) wikiPageWikiLink Amazonis_quadrangle.
- Pettit_(Martian_crater) wikiPageWikiLink Category:Amazonis_quadrangle.
- Pettit_(Martian_crater) wikiPageWikiLink Category:Impact_craters_on_Mars.
- Pettit_(Martian_crater) wikiPageWikiLink Climate_of_Mars.
- Pettit_(Martian_crater) wikiPageWikiLink Dark_slope_streak.
- Pettit_(Martian_crater) wikiPageWikiLink Dark_slope_streaks.
- Pettit_(Martian_crater) wikiPageWikiLink Edison_Pettit.
- Pettit_(Martian_crater) wikiPageWikiLink HiRISE.
- Pettit_(Martian_crater) wikiPageWikiLink Impact_crater.
- Pettit_(Martian_crater) wikiPageWikiLink List_of_craters_on_Mars.
- Pettit_(Martian_crater) wikiPageWikiLink Mariner_program.
- Pettit_(Martian_crater) wikiPageWikiLink Mars.
- Pettit_(Martian_crater) wikiPageWikiLink Mars_Reconnaissance_Orbiter.
- Pettit_(Martian_crater) wikiPageWikiLink Nicholson_crater.
- Pettit_(Martian_crater) wikiPageWikiLink Pettit_(Martian_crater).
- Pettit_(Martian_crater) wikiPageWikiLink Pettit_Crater.
- Pettit_(Martian_crater) wikiPageWikiLink Thermal_Emission_Imaging_System.
- Pettit_(Martian_crater) wikiPageWikiLink Water_on_Mars.
- Pettit_(Martian_crater) wikiPageWikiLink File:Martian_crater_Pettit_based_on_day_THEMIS.png.
- Pettit_(Martian_crater) wikiPageWikiLinkText "Pettit (Martian crater)".
- Pettit_(Martian_crater) wikiPageWikiLinkText "Pettit".
- Pettit_(Martian_crater) caption "Crater Pettit based on THEMIS day-time image".
- Pettit_(Martian_crater) diameter "92.49".
- Pettit_(Martian_crater) eOrW "W".
- Pettit_(Martian_crater) eponym "Edison Pettit, an American astronomer".
- Pettit_(Martian_crater) hasPhotoCollection Pettit_(Martian_crater).
- Pettit_(Martian_crater) latitude "12.39".
- Pettit_(Martian_crater) longitude "173.87".
- Pettit_(Martian_crater) nOrS "N".
- Pettit_(Martian_crater) name "Pettit Crater".
- Pettit_(Martian_crater) wikiPageUsesTemplate Template:Commons_category.
- Pettit_(Martian_crater) wikiPageUsesTemplate Template:Mars.
- Pettit_(Martian_crater) wikiPageUsesTemplate Template:MarsGeo-Crater.
- Pettit_(Martian_crater) wikiPageUsesTemplate Template:Portal_bar.
- Pettit_(Martian_crater) wikiPageUsesTemplate Template:Reflist.
- Pettit_(Martian_crater) subject Category:Amazonis_quadrangle.
- Pettit_(Martian_crater) subject Category:Impact_craters_on_Mars.
- Pettit_(Martian_crater) hypernym Crater.
- Pettit_(Martian_crater) type Crater.
- Pettit_(Martian_crater) type NaturalPlace.
- Pettit_(Martian_crater) type Place.
- Pettit_(Martian_crater) type Location.
- Pettit_(Martian_crater) type Place.
- Pettit_(Martian_crater) type Thing.
- Pettit_(Martian_crater) comment "Pettit Crater is a crater in the Amazonis quadrangle of Mars, located at 12.39° north latitude and 173.87° west longitude. It is 92.49 km in diameter and was named after Edison Pettit, an American astronomer (1890–1962). Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak.".
- Pettit_(Martian_crater) label "Pettit (Martian crater)".
- Pettit_(Martian_crater) sameAs Category:Pettit_(Martian_crater).
- Pettit_(Martian_crater) sameAs Pettit_(cratera).
- Pettit_(Martian_crater) sameAs m.05p1d4r.
- Pettit_(Martian_crater) sameAs Q7179359.
- Pettit_(Martian_crater) sameAs Q7179359.
- Pettit_(Martian_crater) wasDerivedFrom Pettit_(Martian_crater)?oldid=682449835.
- Pettit_(Martian_crater) depiction Martian_crater_Pettit_based_on_day_THEMIS.png.
- Pettit_(Martian_crater) isPrimaryTopicOf Pettit_(Martian_crater).
- Pettit_(Martian_crater) name "Pettit Crater".