December 4, 2009

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Rayology

LPOD-Dec4-09.jpg

north to left Howard Eskildsen

We don't understand rays well enough. Back in 1960 Shoemaker showed that they were ejecta from impact craters, and sometime in the 90s B. Ray Hawke and his colleagues recognized that rays could have two components, freshly pulverized rocks and bright highland rocks. So we know something about their emplacement and composition. But their shapes and lengths and even their non-radiality are not well understood. The rays emanating from the two little Chuck Wood

Technical Details
11/30/2009; 02:08 UT. Meade 6", f/8 Refractor + DMK 41AU02.AS, 2-image composite

Related Links
Rükl plates 59 & 69


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