Lat: 52.9°N, Long: 175.6°E, Diam: 36 km, Depth: km, Rükl: (farside)
external image normal_cooper-large.jpgCooper.jpg
left: Clementine . center: LROC
right: Color-coded topography LAC 18 image from USGS Digital Atlas.


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(LAC zone 18C1) USGS Digital Atlas PDF


Cooper lies some 100 km away east of D'Alembert crater -- a 248 kilometre-wide crater of the Nectarian (~ 3.92 to 3.85 bn years) period. From its appearance Cooper is older than Nectarian, as nearly all of its rim and floor regions show signs of degradation, bombardment, and a recipient of ejecta deposits from, for example, Mare Moscoviense nearby to its south-west. Nearly all of the crater's original rim has been obliterated by numerous small impacts -- particularly at its eastern sectors, while its floor show characterisitcs of reshapement, re-mixing of in-situ materials with above-mentioned ejecta deposits; burying, perhaps, a history of the crater itself. - JohnMoore2 JohnMoore2

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John Cobb; American jurist, scholar (1887-1967).

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This page has been edited 7 times. The last modification was made by - Nunki Nunki on Sep 24, 2011 6:50 am - afx3u2