Difference between revisions of "October 7, 2004"

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=Diamondback Rille=
 
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    <tr><td><div align="center" class="main_sm">Image Credit: [mailto:thefamily90@hotmail.com Jim Phillips]</p>
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<tr><td><div align="center" class="main_sm">Image Credit: [mailto:thefamily90@hotmail.com Jim Phillips]</p>
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<p align="center"><b>Diamondback Rille</b></p>
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<p align="center"><b>Diamondback Rille</b></p>
<p align="left">The lunar maria contain many sinuous rilles. All are somewhat difficult to see, and many are best known from orbital photography. One such feature is Diamondback Rille, an informal, astronaut-named guidepost on the approach to the Apollo 11 landing site in southern Mare Tranquillitatis. Images taken by Apollo 8 showed the rille to be flat-floored and about 800 m wide. The rille is partly visible on the <i>Consolidated Lunar Atlas </i>plate [http://www.lpi.usra.edu/research/cla/images/lores/d5.jpg D5], taken with the Catalina Observatory 61" reflector.  It is beautifully revealed, however, in Jim Phillips' astonishing image with his 8" refractor. This image must have a resolution of 400-500m: remarkable!  The rille starts in an elongated depression considerably off the image to the north, and continues significantly south of the area shown here, but it is narrower to the south. I have applied an aggresive unsharp mark to make the mouseover image, which enhances the rille and the mare ridges. Note the elongated crater southwest of Maskelyne X (diameter 4 km) and elsewhere. These are not volcanic pits but are secondary craters, perhaps from Theophilus.</p>
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<p align="left">The lunar maria contain many sinuous rilles. All are somewhat difficult to see, and many are best known from orbital photography. One such feature is Diamondback Rille, an informal, astronaut-named guidepost on the approach to the Apollo 11 landing site in southern Mare Tranquillitatis. Images taken by Apollo 8 showed the rille to be flat-floored and about 800 m wide. The rille is partly visible on the <i>Consolidated Lunar Atlas </i>plate [http://www.lpi.usra.edu/research/cla/images/lores/d5.jpg D5], taken with the Catalina Observatory 61" reflector.  It is beautifully revealed, however, in Jim Phillips' astonishing image with his 8" refractor. This image must have a resolution of 400-500m: remarkable!  The rille starts in an elongated depression considerably off the image to the north, and continues significantly south of the area shown here, but it is narrower to the south. I have applied an aggresive unsharp mark to make the mouseover image, which enhances the rille and the mare ridges. Note the elongated crater southwest of Maskelyne X (diameter 4 km) and elsewhere. These are not volcanic pits but are secondary craters, perhaps from Theophilus.</p>
<blockquote><p align="right">&#8212; [mailto:chuck@observingthesky.org Chuck Wood]</blockquote>
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<blockquote><p align="right">&#8212; [mailto:tychocrater@yahoo.com Chuck Wood]</blockquote>
 
<p align="left"><p><b>Technical Details:</b><br>
 
<p align="left"><p><b>Technical Details:</b><br>
 
Oct 3, 2004, TMB 8" F/9</p>
 
Oct 3, 2004, TMB 8" F/9</p>
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<br>Rukl <i>Atlas of the Moon</i> sheet 36
 
<br>Rukl <i>Atlas of the Moon</i> sheet 36
 
<p align="left"><b>Tomorrow's LPOD: </b> What a Difference a Day Makes</p>
 
<p align="left"><b>Tomorrow's LPOD: </b> What a Difference a Day Makes</p>
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<p align="center" class="main_titles"><b>Author &amp; Editor:</b><br>  
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<p align="center" class="main_titles"><b>Author &amp; Editor:</b><br>  
[mailto:chuck@observingthesky.org Charles A. Wood]</p>
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[mailto:tychocrater@yahoo.com Charles A. Wood]</p>
<p align="center" class="main_titles"><b>Technical Consultant:</b><br>
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<p align="center" class="main_titles"><b>Technical Consultant:</b><br>
[mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
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[mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
<p align="center" class="main_titles"><b>Contact Translator:</b><br>
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<p align="center" class="main_titles"><b>Contact Translator:</b><br>
[mailto:pablolonnie@yahoo.com.mx" class="one Pablo Lonnie Pacheco Railey]  (Es)<br>
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[mailto:pablolonnie@yahoo.com.mx" class="one Pablo Lonnie Pacheco Railey]  (Es)<br>
[mailto:chlegrand@free.fr" class="one Christian Legrand] (Fr)</p>
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[mailto:chlegrand@free.fr" class="one Christian Legrand] (Fr)</p>
<p align="center" class="main_titles"><b>[mailto:webuser@observingthesky.org Contact Webmaster]</b></p>
+
<p align="center" class="main_titles"><b>[mailto:webuser@observingthesky.org Contact Webmaster]</b></p>
<p align="center" class="main_titles"><b>A service of:</b><br>
+
<p align="center" class="main_titles"><b>A service of:</b><br>
[http://www.observingthesky.org/" class="one ObservingTheSky.Org]</p>
+
[http://www.observingthesky.org/" class="one ObservingTheSky.Org]</p>
<p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
+
<p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
[http://antwrp.gsfc.nasa.gov/apod/astropix.html" class="one Astronomy] | [http://www.msss.com/" class="one Mars] | [http://epod.usra.edu/" class="one Earth]</p>
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[http://antwrp.gsfc.nasa.gov/apod/astropix.html" class="one Astronomy] | [http://www.msss.com/" class="one Mars] | [http://epod.usra.edu/" class="one Earth]</p>
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<p>&nbsp;</p>
 
<p>&nbsp;</p>
 
 
 
 
 
----
 
----
 
===COMMENTS?===  
 
===COMMENTS?===  
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
 
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Revision as of 17:25, 4 January 2015

Diamondback Rille

<nobr>Diamondback Rille</nobr>

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Image Credit: Jim Phillips


Diamondback Rille

The lunar maria contain many sinuous rilles. All are somewhat difficult to see, and many are best known from orbital photography. One such feature is Diamondback Rille, an informal, astronaut-named guidepost on the approach to the Apollo 11 landing site in southern Mare Tranquillitatis. Images taken by Apollo 8 showed the rille to be flat-floored and about 800 m wide. The rille is partly visible on the Consolidated Lunar Atlas plate D5, taken with the Catalina Observatory 61" reflector. It is beautifully revealed, however, in Jim Phillips' astonishing image with his 8" refractor. This image must have a resolution of 400-500m: remarkable! The rille starts in an elongated depression considerably off the image to the north, and continues significantly south of the area shown here, but it is narrower to the south. I have applied an aggresive unsharp mark to make the mouseover image, which enhances the rille and the mare ridges. Note the elongated crater southwest of Maskelyne X (diameter 4 km) and elsewhere. These are not volcanic pits but are secondary craters, perhaps from Theophilus.

Chuck Wood

Technical Details:
Oct 3, 2004, TMB 8" F/9

Related Links:
Apollo 10 image
Rukl Atlas of the Moon sheet 36

Tomorrow's LPOD: What a Difference a Day Makes



Author & Editor:
Charles A. Wood

Technical Consultant:
Anthony Ayiomamitis

Contact Translator:
" class="one Pablo Lonnie Pacheco Railey (Es)
" class="one Christian Legrand (Fr)

Contact Webmaster

A service of:
" class="one ObservingTheSky.Org

Visit these other PODs:
" class="one Astronomy | " class="one Mars | " class="one Earth

 


COMMENTS?

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