Difference between revisions of "February 12, 2004"

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=Happy Birthday, Darwin=
 
=Happy Birthday, Darwin=
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      <td width="50%"><h2 align="left">Happy Birthday, Darwin!</h2></td>
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  <td width="50%"><h2 align="right">February 12, 2004</h2></td>
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    [javascript:;" onMouseOver="MM_swapImage('main_image','','images/LPOD-2004-02-12b.jpeg',1)" onMouseOut="MM_swapImgRestore() <IMG SRC="images/LPOD-2004-02-12.jpeg" NAME="main_image" width="499" height="400" border="0">]</div>
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      <td><div align="center" span class="main_sm">Image Credit:  <a class="one" href="http://www.lpi.usra.edu/research/cla/info/f24/">Consolidated Lunar Atlas, Sheet F24</a></div></td>
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<table class="story" border="0" bgcolor="#FFFFFF" width="90%" cellpadding="10" align="center"><tr><td>
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  <p class="story" align="center"><b>Happy Birthday, Darwin! </b></p>
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  <p class="story" align="left">Charles Darwin, who ranks with Newton and Einstein as one of the world's greatest scientists, was born on this
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        date 195 years ago at Shrewsbury, England. Unlike Darwin's ideas, which remain robust, the lunar crater Darwin
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        has seen better days. Darwin is the left of center crater cut by a diagonal rille and containing an off-center
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        coarse dome. Although the 130 km wide crater is battered, it is easy to find near the western limb, being just
 +
        south of the dark, mare-floored crater Cruger. Ironically, the crater Darwin was instantaneously aged by the
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        formation of the Orientale basin, just over the limb. Lunar Orbiter IV images show that this entire region is
 +
        mantled in deep and contorted, ground-hugging ejecta from the Orientale impact. The roughness visible in the
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        upper right interior of Darwin is crumpled surface-flow ejecta that was decelerated by collision with Darwin's
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        east wall. Lamarck, the crater south of Darwin, is also full of confused masses of ejecta. The visible rille in
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        Darwin crosses it's east rim and makes an X where crossing a more northerly trending rille in the adjacent
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        unnamed crater. The dome inside Darwin is large and rough-textured; it is also one of the few domes not on mare
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        material. Finally, note the large crater at the bottom center. This is Byrgius, with nearly twin craters cutting
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        its east and west rims. And on the floor of Byrgius - is that a smaller, flatter, pitted dome? Click the image
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        above to see an image with crater names. </p>
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  <p><b>Technical Details:</b><br>
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  Extract from Consolidated Lunar Atlas photographic print, originally acquired with Univ. of Arizona Lunar and Planetary Lab 61" Catalina reflector, Feb 22, 1967. </p>
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  <p class"story"><b>Related Links:</b><br>
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[http://www.darwinday.org/ Darwin Day, 2004]<br>
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[http://james.as.arizona.edu/~psmith/61inch/ Catalina 61"]<br>
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[http://www.lpi.usra.edu/research/lunar_orbiter/bin/rslt_nam.html?darwin%7C0 Lunar Orbiter IV images]</p>
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  <p class"story"> <b>Tomorrow's LPOD:</b> Copernicus in Color</p>
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  <p><img src="../../../MainPage/spacer.gif" width="640" height="1"></p>
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  <p align="center" class="main_titles"><b>Author & Editor:</b><br>
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      [mailto:chuck@observingthesky.org 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>[mailto:webmaster@entropysponge.com Contact Webmaster]</b></p>
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      <p align="center" class="main_titles"><b>A service of:</b><br>
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      <a class="one" href="http://www.observingthesky.org/">ObservingTheSky.Org</a></p>
 +
      <p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
 +
      <a class="one" href="http://antwrp.gsfc.nasa.gov/apod/astropix.html">Astronomy</a> | <a class="one" href="http://www.msss.com/">Mars</a> | <a class="one" href="http://epod.usra.edu/">Earth</a></p></td>
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<p>&nbsp;</p>
  
  

Revision as of 14:35, 4 January 2015

Happy Birthday, Darwin

Happy Birthday, Darwin!

February 12, 2004
[javascript:;" onMouseOver="MM_swapImage('main_image',,'images/LPOD-2004-02-12b.jpeg',1)" onMouseOut="MM_swapImgRestore() <IMG SRC="images/LPOD-2004-02-12.jpeg" NAME="main_image" width="499" height="400" border="0">]
Image Credit: <a class="one" href="http://www.lpi.usra.edu/research/cla/info/f24/">Consolidated Lunar Atlas, Sheet F24</a>

Happy Birthday, Darwin!

Charles Darwin, who ranks with Newton and Einstein as one of the world's greatest scientists, was born on this date 195 years ago at Shrewsbury, England. Unlike Darwin's ideas, which remain robust, the lunar crater Darwin has seen better days. Darwin is the left of center crater cut by a diagonal rille and containing an off-center coarse dome. Although the 130 km wide crater is battered, it is easy to find near the western limb, being just south of the dark, mare-floored crater Cruger. Ironically, the crater Darwin was instantaneously aged by the formation of the Orientale basin, just over the limb. Lunar Orbiter IV images show that this entire region is mantled in deep and contorted, ground-hugging ejecta from the Orientale impact. The roughness visible in the upper right interior of Darwin is crumpled surface-flow ejecta that was decelerated by collision with Darwin's east wall. Lamarck, the crater south of Darwin, is also full of confused masses of ejecta. The visible rille in Darwin crosses it's east rim and makes an X where crossing a more northerly trending rille in the adjacent unnamed crater. The dome inside Darwin is large and rough-textured; it is also one of the few domes not on mare material. Finally, note the large crater at the bottom center. This is Byrgius, with nearly twin craters cutting its east and west rims. And on the floor of Byrgius - is that a smaller, flatter, pitted dome? Click the image above to see an image with crater names.

Technical Details:
Extract from Consolidated Lunar Atlas photographic print, originally acquired with Univ. of Arizona Lunar and Planetary Lab 61" Catalina reflector, Feb 22, 1967.

Related Links:
Darwin Day, 2004
Catalina 61"
Lunar Orbiter IV images

Tomorrow's LPOD: Copernicus in Color

<img src="../../../MainPage/spacer.gif" width="640" height="1">

Author & Editor:
Charles A. Wood

Technical Consultant:
Anthony Ayiomamitis

Contact Webmaster

A service of:
<a class="one" href="http://www.observingthesky.org/">ObservingTheSky.Org</a>

Visit these other PODs:
<a class="one" href="http://antwrp.gsfc.nasa.gov/apod/astropix.html">Astronomy</a> | <a class="one" href="http://www.msss.com/">Mars</a> | <a class="one" href="http://epod.usra.edu/">Earth</a>


 


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