Difference between revisions of "May 23, 2013"
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=Another Go At Scheiner= | =Another Go At Scheiner= | ||
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| − | <em>top image by [mailto:maximoeselmasguapo@hotmail.com Jose Cabello] and bottom from LRO QuickMap</em><br /> | + | <em>top image by [mailto:maximoeselmasguapo@hotmail.com" rel="nofollow Jose Cabello] and bottom from LRO QuickMap</em><br /> |
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| − | When looking at Jose's new mosaic of the south polar region I noticed the odd curved ridge (arrow) on the south side of Scheiner's floor. This looked familiar and checking the <em>Moon Wiki</em> entry for [http://the-moon.wikispaces.com/Scheiner Scheiner] I found that I had discovered the ridge at least twice earlier! First, was in [http://lpod.wikispaces.com/July+12%2C+2007 2007] and the [http://lpod.wikispaces.com/June+14%2C+2012 second] time was just a year ago. Both times I sought unsuccessfully for a reasonable interpretation. And since there were no comments for either LPOD, nobody else must have had a good idea. But now I have a suggestion that is good enough to close the file on Scheiner's mysterious ridge. If you look closely at the LRO image you will notice a smaller parallel ridge closer to the center of the floor, and squashed by the fresh crater [http://the-moon.wikispaces.com/file/detail/Rukl_72_satellites_NW.jpg Scheiner A]. I propose that these two ridges are the sides of a basin secondary crater chain with about 6 craters. As I wrote in an earlier LPOD (with a different interpretation) these craters seem to have been partially covered by the smooth material on Scheiner's floor; probably ejecta from the Orientale basin. The only minor weakness to this new interpretation is that the putative chain doesn't seem to be radial to any basin.<br /> | + | When looking at Jose's new mosaic of the south polar region I noticed the odd curved ridge (arrow) on the south side of Scheiner's floor. This looked familiar and checking the <em>Moon Wiki</em> entry for [http://the-moon.wikispaces.com/Scheiner Scheiner] I found that I had discovered the ridge at least twice earlier! First, was in [http://lpod.wikispaces.com/July+12%2C+2007 2007] and the [http://lpod.wikispaces.com/June+14%2C+2012 second] time was just a year ago. Both times I sought unsuccessfully for a reasonable interpretation. And since there were no comments for either LPOD, nobody else must have had a good idea. But now I have a suggestion that is good enough to close the file on Scheiner's mysterious ridge. If you look closely at the LRO image you will notice a smaller parallel ridge closer to the center of the floor, and squashed by the fresh crater [http://the-moon.wikispaces.com/file/detail/Rukl_72_satellites_NW.jpg" rel="nofollow Scheiner A]. I propose that these two ridges are the sides of a basin secondary crater chain with about 6 craters. As I wrote in an earlier LPOD (with a different interpretation) these craters seem to have been partially covered by the smooth material on Scheiner's floor; probably ejecta from the Orientale basin. The only minor weakness to this new interpretation is that the putative chain doesn't seem to be radial to any basin.<br /> |
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| − | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | + | <em>[mailto:tychocrater@yahoo.com" rel="nofollow Chuck Wood]</em><br /> |
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<strong>Technical Details</strong><br /> | <strong>Technical Details</strong><br /> | ||
Revision as of 22:45, 4 January 2015
Another Go At Scheiner
top image by " rel="nofollow Jose Cabello and bottom from LRO QuickMap
When looking at Jose's new mosaic of the south polar region I noticed the odd curved ridge (arrow) on the south side of Scheiner's floor. This looked familiar and checking the Moon Wiki entry for Scheiner I found that I had discovered the ridge at least twice earlier! First, was in 2007 and the second time was just a year ago. Both times I sought unsuccessfully for a reasonable interpretation. And since there were no comments for either LPOD, nobody else must have had a good idea. But now I have a suggestion that is good enough to close the file on Scheiner's mysterious ridge. If you look closely at the LRO image you will notice a smaller parallel ridge closer to the center of the floor, and squashed by the fresh crater " rel="nofollow Scheiner A. I propose that these two ridges are the sides of a basin secondary crater chain with about 6 craters. As I wrote in an earlier LPOD (with a different interpretation) these craters seem to have been partially covered by the smooth material on Scheiner's floor; probably ejecta from the Orientale basin. The only minor weakness to this new interpretation is that the putative chain doesn't seem to be radial to any basin.
" rel="nofollow Chuck Wood
Technical Details
13/05/22 20:54UTC. C11, dmk21au618 e IR-Pass685nm.
Related Links
Rükl plate 72
21st Century Atlas chart 15.
