Difference between revisions of "May 27, 2006"

From LPOD
Jump to: navigation, search
 
(9 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
 
=L98=
 
=L98=
 +
<!-- Start of content -->
 
<div class="post" id="post-302">
 
<div class="post" id="post-302">
  
Line 6: Line 7:
 
<p>[[File:ImbriFlow-Pau.jpg|Imbrium flow-Pau]]<br />
 
<p>[[File:ImbriFlow-Pau.jpg|Imbrium flow-Pau]]<br />
 
<em>image by [mailto:kcpaulhk@yahoo.com.hk K.C. Pau]</em> </p>
 
<em>image by [mailto:kcpaulhk@yahoo.com.hk K.C. Pau]</em> </p>
<p>The [http://www.lpod.org/archive/archive/2004/05/LPOD-2004-05-22.htm Lunar 100] lists interesting features inversely according to their visibility. L1, the Moon, is big and easy to find. L100 is the bright swirl group just over the limb on the far side of the Moon. And L98 is such a difficult feature that only one observer has managed to image it, and he has done it [http://www.lpod.org/archive/LPOD-2005-04-26.htm  four] times! K.C. Pau, observing from his balcony in Hong Kong, has now taken his best image of the illusive lava flow in Mare Imbrium between Carlini and McDonald. This is the very best defined individual lava flow on the Moon - it is even shown on Rükl&#8217;s chart 10. Based on the small number of impact craters superposed on it this Imbrium flow is speculated to be as young as 2.5 billion years old; most other Imbrium lavas are roughly a billion years older. And the height of the flow is estimated at 35 m; usually when we speak of image resolution we mean horizontal resolution but K.C.&#8217;s image shows that vertical resolution in the tens of meters is obtainable.</p>
+
<p>The [[May_22,_2004|Lunar 100]] lists interesting features inversely according to their visibility. L1, the Moon, is big and easy to find. L100 is the bright swirl group just over the limb on the far side of the Moon. And L98 is such a difficult feature that only one observer has managed to image it, and he has done it [[April_26,_2005|four]] times! K.C. Pau, observing from his balcony in Hong Kong, has now taken his best image of the illusive lava flow in Mare Imbrium between Carlini and McDonald. This is the very best defined individual lava flow on the Moon - it is even shown on Rükl&#8217;s chart 10. Based on the small number of impact craters superposed on it this Imbrium flow is speculated to be as young as 2.5 billion years old; most other Imbrium lavas are roughly a billion years older. And the height of the flow is estimated at 35 m; usually when we speak of image resolution we mean horizontal resolution but K.C.&#8217;s image shows that vertical resolution in the tens of meters is obtainable.</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
 
<p>[mailto:tychocrater@yahoo.com Chuck Wood]</p>
 
<p><b>Technical Details:</b><br />
 
<p><b>Technical Details:</b><br />
Line 12: Line 13:
 
<p><b>Related Links:</b><br />
 
<p><b>Related Links:</b><br />
 
Rükl plate 10<br />
 
Rükl plate 10<br />
K.C.&#8217;s previous [http://www.lpod.org/archive/LPOD-2005-04-23.htm closeups] of this [http://www.lpod.org/archive/LPOD-2004-07-19.htm flow.]</p>
+
K.C.&#8217;s previous [[April_23,_2005|closeups]] of this [[July_19,_2004|flow.]]</p>
<p align="center"><b>Yesterday, 2.6% of LPOD readers clicked on a sponsor ad - Thanks!</b><br />
+
<p><b>Yesterday's LPOD:</b> [[May 26, 2006|Three Rilles and a Strange Volcano]] </p>
<i>Now you can support LPOD when you buy ANY book from Amazon thru [http://www.lpod.org/?page_id=102  LPOD!]</i></p>
+
<p><b>Tomorrow's LPOD:</b> [[May 28, 2006|A Ho-Hum Place]] </p>
 
</div>
 
</div>
----
+
<p> </p>
===COMMENTS?===
+
<p> </p>
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
+
<p> </p>
 +
<!-- End of content -->
 +
{{wiki/ArticleFooter}}

Latest revision as of 16:05, 22 March 2015

L98

Imbrium flow-Pau
image by K.C. Pau

The Lunar 100 lists interesting features inversely according to their visibility. L1, the Moon, is big and easy to find. L100 is the bright swirl group just over the limb on the far side of the Moon. And L98 is such a difficult feature that only one observer has managed to image it, and he has done it four times! K.C. Pau, observing from his balcony in Hong Kong, has now taken his best image of the illusive lava flow in Mare Imbrium between Carlini and McDonald. This is the very best defined individual lava flow on the Moon - it is even shown on Rükl’s chart 10. Based on the small number of impact craters superposed on it this Imbrium flow is speculated to be as young as 2.5 billion years old; most other Imbrium lavas are roughly a billion years older. And the height of the flow is estimated at 35 m; usually when we speak of image resolution we mean horizontal resolution but K.C.’s image shows that vertical resolution in the tens of meters is obtainable.

Chuck Wood

Technical Details:
250 mm f/6 Newtonian + 2.5X barlow + Phillips Toucam Pro.

Related Links:
Rükl plate 10
K.C.’s previous closeups of this flow.

Yesterday's LPOD: Three Rilles and a Strange Volcano

Tomorrow's LPOD: A Ho-Hum Place


COMMENTS?

Register, Log in, and join in the comments.