Difference between revisions of "April 13, 2005"

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    <tr><td><div align="center" class="main_sm">Image Credit: [mailto:rhineland@hotmail.com Zac Pujic]</p>
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<tr><td><div align="center" class="main_sm"><p>Image Credit: [mailto:rhineland@hotmail.com Zac Pujic]</p>
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<p align="center"><b>Righteous Recti</b></p>
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<p align="left">The Straight Wall is one of the most widely imaged features on the Moon, but every once and a while yet another image shows us something new. Zac Pujic’s view documents things we know and a little bit more. What we know is that the Straight Wall itself isn’t completely straight - it has four or more small offsets. The second from the top (north) corresponds with the Wall’s intersection with a faintly visible, older rille or fault that extends to the upper right. The southern-most offset seems to be the end of a curved rille that doubles back to the rille about 10 km to the north. This short rille does not show up on the Lunar Orbiter IV image and is new to me. It is also well known that the Birt Rille also has some offsets, and Zac suggests that the northern one may be a place where the roof of a lava tunnel under the rille has not yet collapsed. In my mind the Birt Rille is very bizzare because it seems to have a source crater at each end, so if there is a lava tunnel, I don’t know which way it flowed! Zac also notes that there may be a very small rille just to the right near the south end (bottom) of the rille. The existence of these two suggested new rilles is uncertain so even more images are needed of this remarkably photogenic feature!
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<p align="left">The Straight Wall is one of the most widely imaged features on the Moon, but every once and a while yet another image shows us something new. Zac Pujic’s view documents things we know and a little bit more. What we know is that the Straight Wall itself isn’t completely straight - it has four or more small offsets. The second from the top (north) corresponds with the Wall’s intersection with a faintly visible, older rille or fault that extends to the upper right. The southern-most offset seems to be the end of a curved rille that doubles back to the rille about 10 km to the north. This short rille does not show up on the Lunar Orbiter IV image and is new to me. It is also well known that the Birt Rille also has some offsets, and Zac suggests that the northern one may be a place where the roof of a lava tunnel under the rille has not yet collapsed. In my mind the Birt Rille is very bizzare because it seems to have a source crater at each end, so if there is a lava tunnel, I don’t know which way it flowed! Zac also notes that there may be a very small rille just to the right near the south end (bottom) of the rille. The existence of these two suggested new rilles is uncertain so even more images are needed of this remarkably photogenic feature!
 
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<blockquote><p align="right">&#8212; [mailto:tychocrater@yahoo.com Chuck Wood]</blockquote>
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<p align="left"><p><b>Technical Details:</b><br>
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<p align="right">&#8212; [mailto:tychocrater@yahoo.com Chuck Wood]</p></blockquote>
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<p align="left"><b>Technical Details:</b><br>
 
31 cm Newtonian reflector + eyepiece projection to give f/28 + Phillips ToUCam Pro II webcam in black/white mode. Stacked with Registax 3.0.1.23</p>
 
31 cm Newtonian reflector + eyepiece projection to give f/28 + Phillips ToUCam Pro II webcam in black/white mode. Stacked with Registax 3.0.1.23</p>
 
<p><b>Related Links:</b><br>
 
<p><b>Related Links:</b><br>
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[http://users.bigpond.net.au/metaplace/home.html Zac’s High Res Lunar & Planetary Imaging  ]
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[http://users.bigpond.net.au/metaplace/home.html Zac's High Res Lunar & Planetary Imaging  ]
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<br>[http://www.lpod.org/archive/2004/01/LPOD-2004-01-1 LeGault’s Wall]
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<br>[[February_22,_2004|Pau's Wall]]
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<br>[http://www.lpod.org/archive/2004/02/LPOD-2004-02-22.htm Pau’s Wall]
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<br>[[February_22,_2004|Apollo's Wall]]
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<br>[http://www.lpod.org/archive/2004/02/LPOD-2004-02-22.htm Apollo’s Wall]
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<br>[http://www.lpi.usra.edu/resources/lunar_orbiter/images/img/iv_113_h1.jpg Lunar Orbiter IV's Wall]
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<br>[http://www.lpi.usra.edu/resources/lunar_orbiter/images/img/iv_113_h1.jpg Lunar Orbiter IV’s Wall]
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</p>
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<p align="left"><b>Tomorrow's LPOD: </b> Boo!</p>
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<p><b>Yesterday's LPOD:</b> [[April 12, 2005|Sliced Slivers]] </p>
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<p><img src="MainPage/spacer.gif" width="640" height="1"></p></td>
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<p><b>Tomorrow's LPOD:</b> [[April 14, 2005|Boo! (Really Bu!)]] </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>  
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[mailto:chuck@observingthesky.org Charles A. Wood]</p>
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[mailto:tychocrater@yahoo.com Charles A. Wood]</p>
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<p align="center" class="main_titles"><b>Technical Consultant:</b><br>
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[mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
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<p align="center" class="main_titles"><b>Contact Translator:</b><br>
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[mailto:pablolonnie@yahoo.com.mx" class="one Pablo Lonnie Pacheco Railey]  (Es)<br>
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[mailto:chlegrand@free.fr" class="one Christian Legrand] (Fr)</p>
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<p align="center" class="main_titles"><b>[mailto:webuser@observingthesky.org Contact Webmaster]</b></p>
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<p align="center" class="main_titles"><b>A service of:</b><br>
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[http://www.observingthesky.org/" class="one ObservingTheSky.Org]</p>
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<p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
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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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===COMMENTS?===
 
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Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
 

Latest revision as of 14:13, 15 March 2015

Righteous Recti

LPOD-2005-04-13.jpeg

Image Credit: Zac Pujic


Righteous Recti

The Straight Wall is one of the most widely imaged features on the Moon, but every once and a while yet another image shows us something new. Zac Pujic’s view documents things we know and a little bit more. What we know is that the Straight Wall itself isn’t completely straight - it has four or more small offsets. The second from the top (north) corresponds with the Wall’s intersection with a faintly visible, older rille or fault that extends to the upper right. The southern-most offset seems to be the end of a curved rille that doubles back to the rille about 10 km to the north. This short rille does not show up on the Lunar Orbiter IV image and is new to me. It is also well known that the Birt Rille also has some offsets, and Zac suggests that the northern one may be a place where the roof of a lava tunnel under the rille has not yet collapsed. In my mind the Birt Rille is very bizzare because it seems to have a source crater at each end, so if there is a lava tunnel, I don’t know which way it flowed! Zac also notes that there may be a very small rille just to the right near the south end (bottom) of the rille. The existence of these two suggested new rilles is uncertain so even more images are needed of this remarkably photogenic feature!

— Chuck Wood

Technical Details:
31 cm Newtonian reflector + eyepiece projection to give f/28 + Phillips ToUCam Pro II webcam in black/white mode. Stacked with Registax 3.0.1.23

Related Links:
Zac's High Res Lunar & Planetary Imaging
Pau's Wall
Apollo's Wall
Lunar Orbiter IV's Wall

Yesterday's LPOD: Sliced Slivers

Tomorrow's LPOD: Boo! (Really Bu!)


Author & Editor:
Charles A. Wood

 

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