Difference between revisions of "May 16, 2007"

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=Profile in Confusion=
 
=Profile in Confusion=
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<p>[[File:Petermann_cusanus_2006_04_14.jpg|petermann_cusanus_2006_04_14.jpg]]</p>
 
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<p>[[File:Petermann_cusanus_2006_04_14.jpg|petermann_cusanus_2006_04_14.jpg]]</p>
 
 
<p><em>image by [mailto:dpeach_78@yahoo.co.uk Damian Peach]</em></p>
 
<p><em>image by [mailto:dpeach_78@yahoo.co.uk Damian Peach]</em></p>
 
<p>When I need an image for LPOD (every night!) I can always find an intriguing one at Damian Peach&#8217;s [http://www.damianpeach.com/lunar.htm website], which may be the largest collection of high quality lunar images by any single observer. This one caught my eye for three reasons - I couldn&#8217;t identify the craters, the feature on the right is bizarre, and the entire scene is very dramatic! 73 km-wide Petermann is the flat-floored crater on the left, and 63 km-wide Cusanus is to the right; both are near the Moon&#8217;s northeast limb, between Mare Humboldtianum and the pole. The lighting in Damian&#8217;s image shows the arc-ed shadow cast by the west rim of Cusanus, but the east rim looks like a series of pointy mountains. Clamoring to find a vertical view of these craters I discovered that there is no good one from Lunar Orbiters but Clementine (below) provides an explanation. The east wall of Cusanus is cut by two or three later small craters whose western rims are low or missing. So in Damian&#8217;s image we are looking at cross-sections of impact craters. What a remarkable view!</p>
 
<p>When I need an image for LPOD (every night!) I can always find an intriguing one at Damian Peach&#8217;s [http://www.damianpeach.com/lunar.htm website], which may be the largest collection of high quality lunar images by any single observer. This one caught my eye for three reasons - I couldn&#8217;t identify the craters, the feature on the right is bizarre, and the entire scene is very dramatic! 73 km-wide Petermann is the flat-floored crater on the left, and 63 km-wide Cusanus is to the right; both are near the Moon&#8217;s northeast limb, between Mare Humboldtianum and the pole. The lighting in Damian&#8217;s image shows the arc-ed shadow cast by the west rim of Cusanus, but the east rim looks like a series of pointy mountains. Clamoring to find a vertical view of these craters I discovered that there is no good one from Lunar Orbiters but Clementine (below) provides an explanation. The east wall of Cusanus is cut by two or three later small craters whose western rims are low or missing. So in Damian&#8217;s image we are looking at cross-sections of impact craters. What a remarkable view!</p>
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<p><em>LPOD earns a commision when you buy ANY book from Amazon thru [[LPOD]]<br />
 
<p><em>LPOD earns a commision when you buy ANY book from Amazon thru [[LPOD]]<br />
 
Have you bought a book lately?</em><div>
 
Have you bought a book lately?</em><div>
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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 18:53, 4 January 2015

Profile in Confusion

petermann_cusanus_2006_04_14.jpg

image by Damian Peach

When I need an image for LPOD (every night!) I can always find an intriguing one at Damian Peach’s website, which may be the largest collection of high quality lunar images by any single observer. This one caught my eye for three reasons - I couldn’t identify the craters, the feature on the right is bizarre, and the entire scene is very dramatic! 73 km-wide Petermann is the flat-floored crater on the left, and 63 km-wide Cusanus is to the right; both are near the Moon’s northeast limb, between Mare Humboldtianum and the pole. The lighting in Damian’s image shows the arc-ed shadow cast by the west rim of Cusanus, but the east rim looks like a series of pointy mountains. Clamoring to find a vertical view of these craters I discovered that there is no good one from Lunar Orbiters but Clementine (below) provides an explanation. The east wall of Cusanus is cut by two or three later small craters whose western rims are low or missing. So in Damian’s image we are looking at cross-sections of impact craters. What a remarkable view!

Chuck Wood

petermann_cusanus_Clem2.jpg

Technical Details:
14 April, 2006. C14 @ F41. Lumenera LU075M.

Related Links:
Rükl charts 5 & 6
Damian’s website

Don’t forget to add yourself - as Damian Peach has done - to the growing list (69 so far) of lunatics at

Frappr LPOD!

LPOD earns a commision when you buy ANY book from Amazon thru LPOD
Have you bought a book lately?


COMMENTS?

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