Difference between revisions of "February 10, 2007"

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<em>images by [mailto:kcpaulhk@yahoo.com.hk K.C. Pau], Hong Kong</em></p>
 
<em>images by [mailto:kcpaulhk@yahoo.com.hk K.C. Pau], Hong Kong</em></p>
 
<p>KC Pau discovers rilles. In 2004 he imaged a very faint [http://www.lpod.org/archive/archive/2004/02/LPOD-2004-02-22.htm rille] near Lassell crater in southern Mare Nubium. This was later recognized as a rille that had been sighted nearly 100 years earlier by Elger, but it was faint and uncommonly reported. Now KC has imaged another rille that seems to be unknown. This is southwest of the crater Webb (top right), north of Langrenus. Like the Nubium rille this is at the edge of certainty and looks almost like a sharp crease in the surface. At a somewhat [http://lpod.org/coppermine/displayimage.php?pid=1017&#038;fullsize=1 higher] illumination angle it is not visible, but on a Consolidated Lunar Atlas [http://www.lpi.usra.edu/resources/cla/images/hires/fullframe/e4.tif plate] with very similar lighting, but lower resolution, there is a suggestion that the surface is dimpled downward along the rille. This is a real feature, the question is was it really unknown until last December 7th?</p>
 
<p>KC Pau discovers rilles. In 2004 he imaged a very faint [http://www.lpod.org/archive/archive/2004/02/LPOD-2004-02-22.htm rille] near Lassell crater in southern Mare Nubium. This was later recognized as a rille that had been sighted nearly 100 years earlier by Elger, but it was faint and uncommonly reported. Now KC has imaged another rille that seems to be unknown. This is southwest of the crater Webb (top right), north of Langrenus. Like the Nubium rille this is at the edge of certainty and looks almost like a sharp crease in the surface. At a somewhat [http://lpod.org/coppermine/displayimage.php?pid=1017&#038;fullsize=1 higher] illumination angle it is not visible, but on a Consolidated Lunar Atlas [http://www.lpi.usra.edu/resources/cla/images/hires/fullframe/e4.tif plate] with very similar lighting, but lower resolution, there is a suggestion that the surface is dimpled downward along the rille. This is a real feature, the question is was it really unknown until last December 7th?</p>
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<em>Now you can support LPOD when you buy ANY book from Amazon thru [[LPOD]]</em></p>
 
<em>Now you can support LPOD when you buy ANY book from Amazon thru [[LPOD]]</em></p>
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===COMMENTS?===  
 
===COMMENTS?===  
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.

Revision as of 18:49, 4 January 2015

At the Edge of Certainty

Webb_1923_175.jpg
images by K.C. Pau, Hong Kong

KC Pau discovers rilles. In 2004 he imaged a very faint rille near Lassell crater in southern Mare Nubium. This was later recognized as a rille that had been sighted nearly 100 years earlier by Elger, but it was faint and uncommonly reported. Now KC has imaged another rille that seems to be unknown. This is southwest of the crater Webb (top right), north of Langrenus. Like the Nubium rille this is at the edge of certainty and looks almost like a sharp crease in the surface. At a somewhat higher illumination angle it is not visible, but on a Consolidated Lunar Atlas plate with very similar lighting, but lower resolution, there is a suggestion that the surface is dimpled downward along the rille. This is a real feature, the question is was it really unknown until last December 7th?

Chuck Wood

Technical Details:
Right: 7 Dec, 2006. 10″ f/6 Newtonian + 5X barlow + Philips Toucam Pro. Lat.: 22º 15′ N, Long.:114º 10′ E Elevation is 0 meter.

Related Links:
Rükl Plate 49

Now you can support LPOD when you buy ANY book from Amazon thru LPOD

COMMENTS?

Click on this icon File:PostIcon.jpg at the upper right to post a comment.

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