Difference between revisions of "July 14, 2009"
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<em>image by [mailto:dpeach_78@yahoo.co.uk Damian Peach]</em><br /> | <em>image by [mailto:dpeach_78@yahoo.co.uk Damian Peach]</em><br /> | ||
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| − | Along the western edge of Deslandres is this cluster of older craters. The most conspicuous is Ball, which has a remarkable smooth but terraced rim. In fact, it is amazing that the terraces are still visible. And I am surprised that the floor - at least on the east - is well defined. I expected piles of debris from the smoothed walls to litter the floor. In an extreme case of terrace smoothing - [ | + | Along the western edge of Deslandres is this cluster of older craters. The most conspicuous is Ball, which has a remarkable smooth but terraced rim. In fact, it is amazing that the terraces are still visible. And I am surprised that the floor - at least on the east - is well defined. I expected piles of debris from the smoothed walls to litter the floor. In an extreme case of terrace smoothing - [https://the-moon.us/wiki/Alpetragius Alpetragius] - there are just subtle hints of the terraces that must have once existed, and the floor is gone, having been filled with material that slide downslope. [https://the-moon.us/wiki/Capella Capella] is another terraced removed crater whose debris fills the floor, Is Ball a transitional stage to Capella and Alpetragius? Or is its weird interior unrelated to the other two quite odd, but somewhat similar craters?<br /> |
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | ||
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<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
| − | Rükl plate [ | + | Rükl plate [https://the-moon.us/wiki/Rükl_64 64]<br /> |
Damian's new [http://www.damianpeach.com/lunar0709.htm page] of lunar crater images<br /> | Damian's new [http://www.damianpeach.com/lunar0709.htm page] of lunar crater images<br /> | ||
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<p><b>Tomorrow's LPOD:</b> [[July 15, 2009|A Hahnsome View]] </p> | <p><b>Tomorrow's LPOD:</b> [[July 15, 2009|A Hahnsome View]] </p> | ||
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Latest revision as of 19:44, 18 August 2018
Soft Ball
image by Damian Peach
Along the western edge of Deslandres is this cluster of older craters. The most conspicuous is Ball, which has a remarkable smooth but terraced rim. In fact, it is amazing that the terraces are still visible. And I am surprised that the floor - at least on the east - is well defined. I expected piles of debris from the smoothed walls to litter the floor. In an extreme case of terrace smoothing - Alpetragius - there are just subtle hints of the terraces that must have once existed, and the floor is gone, having been filled with material that slide downslope. Capella is another terraced removed crater whose debris fills the floor, Is Ball a transitional stage to Capella and Alpetragius? Or is its weird interior unrelated to the other two quite odd, but somewhat similar craters?
Chuck Wood
Technical Details
C14 with SKYnyx 2.0M. May 27th, 2007, Barbados, W.I.
Related Links
Rükl plate 64
Damian's new page of lunar crater images
Yesterday's LPOD: Too Much Resolution?
Tomorrow's LPOD: A Hahnsome View
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