Difference between revisions of "January 3, 2008"

From LPOD
Jump to: navigation, search
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
 
=Highland Volcanism?=
 
=Highland Volcanism?=
 +
<div class="post" id="post-1661">
  
+
<div class="storycontent">
<div class="post" id="post-1661">
+
<p>[[File:Sacrobosco-08-03-07.jpg|Sacrobosco-08-03-07.jpg]]<br />
 
<div class="storycontent">
 
<p>[[File:Sacrobosco-08-03-07.jpg|Sacrobosco-08-03-07.jpg]]<br />
 
 
<em>image by [mailto:starman2@allegiance.tv Wes Higgins]</em></p>
 
<em>image by [mailto:starman2@allegiance.tv Wes Higgins]</em></p>
 
<p>The lunar highlands are boring. True or false? There is some truth to that statement because of the sameness of many of the craters. But there are mysteries and gems to stumble upon, such as two in this marvelous image - do you see them yet? This is part of the Great Peninsula of highlands, just to the west of the Altai Scarp, which is just beyond the right edge of the image. The large crater with the non-circular outline (is it really one crater?) is Sacrobosco, and at upper left is [http://the-moon.wikispaces.com/Abenezra Abenezra] with its odd curve of hills slumped down from its rim. Immediately to the south is Azophi and below it are two highland oddities. Inside the older crater Azophi G (touching the southwest edge of Azophi) is an off-center, rounded hill, labeled Azophi Gamma by Mädler. I don&#8217;t think it is a central peak (they aren&#8217;t common in nearby old craters here), but it could be a volcanic dome. It must be steeper-sided than mare domes in order to be so visible at this high illumination. Continuing southward is another oddity - the [http://www.lpod.org/archive/archive/2004/06/LPOD-2004-06-23.htm concentric crater] Pontanus E. This is included in my [http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1978LPI.....9.1264W catalog] of 30 years ago, which noted that concentric craters are rare within the highlands. Wes&#8217; image shows the inner ring as being flattened, rather than having the more typical rounded profile. This area is so interesting that it will be tomorrow&#8217;s LPOD too - when a brand new discovery (I think) will be announced. </p>
 
<p>The lunar highlands are boring. True or false? There is some truth to that statement because of the sameness of many of the craters. But there are mysteries and gems to stumble upon, such as two in this marvelous image - do you see them yet? This is part of the Great Peninsula of highlands, just to the west of the Altai Scarp, which is just beyond the right edge of the image. The large crater with the non-circular outline (is it really one crater?) is Sacrobosco, and at upper left is [http://the-moon.wikispaces.com/Abenezra Abenezra] with its odd curve of hills slumped down from its rim. Immediately to the south is Azophi and below it are two highland oddities. Inside the older crater Azophi G (touching the southwest edge of Azophi) is an off-center, rounded hill, labeled Azophi Gamma by Mädler. I don&#8217;t think it is a central peak (they aren&#8217;t common in nearby old craters here), but it could be a volcanic dome. It must be steeper-sided than mare domes in order to be so visible at this high illumination. Continuing southward is another oddity - the [http://www.lpod.org/archive/archive/2004/06/LPOD-2004-06-23.htm concentric crater] Pontanus E. This is included in my [http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1978LPI.....9.1264W catalog] of 30 years ago, which noted that concentric craters are rare within the highlands. Wes&#8217; image shows the inner ring as being flattened, rather than having the more typical rounded profile. This area is so interesting that it will be tomorrow&#8217;s LPOD too - when a brand new discovery (I think) will be announced. </p>
Line 16: Line 14:
 
[http://www.lpod.org/?m=20070105 An earlier view]</p>
 
[http://www.lpod.org/?m=20070105 An earlier view]</p>
 
<p align="center"><em>Now you can support LPOD when you buy ANY book from Amazon thru [[LPOD]]</em></p>
 
<p align="center"><em>Now you can support LPOD when you buy ANY book from Amazon thru [[LPOD]]</em></p>
</div>
+
</div>
 
 
 
 
----
 
----
 
===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 19:01, 4 January 2015

Highland Volcanism?

Sacrobosco-08-03-07.jpg
image by Wes Higgins

The lunar highlands are boring. True or false? There is some truth to that statement because of the sameness of many of the craters. But there are mysteries and gems to stumble upon, such as two in this marvelous image - do you see them yet? This is part of the Great Peninsula of highlands, just to the west of the Altai Scarp, which is just beyond the right edge of the image. The large crater with the non-circular outline (is it really one crater?) is Sacrobosco, and at upper left is Abenezra with its odd curve of hills slumped down from its rim. Immediately to the south is Azophi and below it are two highland oddities. Inside the older crater Azophi G (touching the southwest edge of Azophi) is an off-center, rounded hill, labeled Azophi Gamma by Mädler. I don’t think it is a central peak (they aren’t common in nearby old craters here), but it could be a volcanic dome. It must be steeper-sided than mare domes in order to be so visible at this high illumination. Continuing southward is another oddity - the concentric crater Pontanus E. This is included in my catalog of 30 years ago, which noted that concentric craters are rare within the highlands. Wes’ image shows the inner ring as being flattened, rather than having the more typical rounded profile. This area is so interesting that it will be tomorrow’s LPOD too - when a brand new discovery (I think) will be announced.

Chuck Wood

Technical Details:
08-03-07. 18" Reflector, Infinity 2-1m video camera, MAP /45, stack of 300 frames

Related Links:
Rükl plate 56
An earlier view

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.