Difference between revisions of "August 4, 2009"
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=More Rilles= | =More Rilles= | ||
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− | <em>image by [mailto:slamm@blueyonder.co.uk Stefan Lammel]</em><br /> | + | <em>image by [mailto:slamm@blueyonder.co.uk" rel="nofollow Stefan Lammel]</em><br /> |
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− | Sheet E7 of the <em>[http://the-moon.wikispaces.com/System+of+Lunar+Craters System of Lunar Craters]</em> includes the last official designations for the Ramsden rilles. Like [ | + | Sheet E7 of the <em>[http://the-moon.wikispaces.com/System+of+Lunar+Craters System of Lunar Craters]</em> includes the last official designations for the Ramsden rilles. Like [/July+27%2C+2009 de Gasparis and Palmieri], Ramsden is a focal point for small linear rilles, but in this case the rilles cut the [http://www.mapaplanet.org/explorer-bin/explorer.cgi?map=Moon&layers=moon_clementine_base_v2&west=326.70&south=-33.64&east=329.51&north=-32.23&center_lat=&center=328.105&defaultcenter=on&grid=none&stretch=none&projection=SIMP&advoption=NO&info=NO&resolution=256" rel="nofollow rim] but do not appear to cross its floor. The rilles drawn in E7 are easy to match with the better detail that we now have with Stefan's image, and an addition rille is distinct enough that I have added the number VII to. I thought that because this rille extends near Mercator that perhaps it should be numbered for that crater, but finally decided that adding it to the Ramsden system made more sense because it may be structurally related. But its curvature is also consistent with that of the Hippalus rilles to the north - this just illustrates that often nomenclature decisions have to be made without as much geologic understanding as is desirable. <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 /> | ||
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<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
Rükl plate [http://the-moon.wikispaces.com/Rukl+63 63]<br /> | Rükl plate [http://the-moon.wikispaces.com/Rukl+63 63]<br /> | ||
− | See Stefan's entire [http://www.pbase.com/image/115613331/original mosaic]<br /> | + | See Stefan's entire [http://www.pbase.com/image/115613331/original" rel="nofollow mosaic]<br /> |
− | An [ | + | An [/May+30%2C+2008 interpretation] of the origin of the Ramsden rilles.<br /> |
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Revision as of 19:11, 4 January 2015
More Rilles
image by " rel="nofollow Stefan Lammel
Sheet E7 of the System of Lunar Craters includes the last official designations for the Ramsden rilles. Like [/July+27%2C+2009 de Gasparis and Palmieri], Ramsden is a focal point for small linear rilles, but in this case the rilles cut the " rel="nofollow rim but do not appear to cross its floor. The rilles drawn in E7 are easy to match with the better detail that we now have with Stefan's image, and an addition rille is distinct enough that I have added the number VII to. I thought that because this rille extends near Mercator that perhaps it should be numbered for that crater, but finally decided that adding it to the Ramsden system made more sense because it may be structurally related. But its curvature is also consistent with that of the Hippalus rilles to the north - this just illustrates that often nomenclature decisions have to be made without as much geologic understanding as is desirable.
" rel="nofollow Chuck Wood
Technical Details
Jan 6, 2009, 2200 UT. 10in f4.8 Newtonian, Infinity 2-1M, 5x Powermate, green filter, Avistack, Registax v.5, PSE5, Focus Magic
Related Links
Rükl plate 63
See Stefan's entire " rel="nofollow mosaic
An [/May+30%2C+2008 interpretation] of the origin of the Ramsden rilles.