Difference between revisions of "February 15, 2004"

From LPOD
Jump to: navigation, search
(Created page with "__NOTOC__ =Volcanic Rump= ---- ===COMMENTS?=== Click on this icon image:PostIcon.jpg at the upper right to post a comment.")
 
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
 
=Volcanic Rump=
 
=Volcanic Rump=
 +
 +
</p>
 +
<table width="640"  border="0" align="center" cellpadding="6" cellspacing="2">
 +
    <tr>
 +
      <td width="50%"><h2 align="left">Volcanic Rump</h2></td>
 +
     
 +
  <td width="50%"><h2 align="right">February 15, 2004</h2></td>
 +
    </tr>
 +
</table>
 +
<table width="640"  border="0" align="center" cellpadding="6" cellspacing="2">
 +
    <tr>
 +
      <td colspan="2"><div align="center">
 +
<IMG SRC="images/LPOD-2004-02-15.jpeg" NAME="main_image" width="412" height="400" border="0"></div>
 +
 +
      </td>
 +
  </tr>
 +
</table>
 +
<table width="100%"  border="0" cellpadding="8">
 +
    <tr>
 +
      <td><div align="center" span class="main_sm">Image Credit:  Apollo 15 (AS15-97-13252)</div></td>
 +
    </tr>
 +
</table>
 +
  </p>
 +
<table class="story" border="0" bgcolor="#FFFFFF" width="90%" cellpadding="10" align="center"><tr><td>
 +
 
 +
  <p class="story" align="center"><b>Volcanic Rump </b></p>
 +
 
 +
  <p class="story" align="left">We think of the Apollo missions as being near equatorial - and the landing sites were - but the sinusoidal orbit
 +
        of the Command Modules took them as much as 25 degrees from the equator. And by pointing a handheld Hasselblad
 +
        toward the horizon, the lone astronaut in the CM could image as far as 40 degrees north, as in this near-profile
 +
        view of Rumker. This ~60 km wide and few hundred meters high mound can be considered as the largest lunar dome.
 +
        It is a complex structure with a broad, low-angle rise that hosts 6 to 10 smaller, mostly steeper sided domes.
 +
        Lunar Orbiter pictures show that at least two of these small domes have summit pit craters. Rumker has an
 +
        off-center flat interior, so that the overall structure appears like a broad ring. It is a bizarre feature that
 +
        clearly has volcanic features, but its also possible that some of its elevation results from uplift. Two other
 +
        things to note: The wrinkle ridges at the lower right also show a two component structure. They commonly have a
 +
        relatively sharp crestal ridge that rides on a broader, gentler base. Second, did you notice the line of
 +
        clustered small craters running diagonally across the bottom left? They are secondary impact craters, but the
 +
        source crater isn't obvious.  </p>
 +
 
 +
  <p class"story"><b>Related Links:</b><br>
 +
 
 +
[http://44.1911encyclopedia.org/R/RU/RUMKER_CARL_LUDWIG_CHRISTIAN.htm Rumker - father and son]<br>
 +
[http://utenti.lycos.it/gibbidomine/rumker.htm Mons Rumker Geology]
 +
</p>
 +
 
 +
  <p class"story"> <b>Tomorrow's LPOD:</b> The Image that Launched LPOD!</p>
 +
 
 +
  <p><img src="../../../MainPage/spacer.gif" width="640" height="1"></p>
 +
  </td></tr>
 +
</table>
 +
 
 +
</td></tr>
 +
 
 +
<tr>
 +
  <td colspan="2" rowspan="1">
 +
  <!-- start bottom -->
 +
  <table width="100%"  border="0" cellspacing="2" cellpadding="4">
 +
    <tr>
 +
      <td><hr width="640"></td>
 +
      </tr>
 +
    <tr>
 +
      <td>
 +
  <p align="center" class="main_titles"><b>Author & Editor:</b><br>
 +
      [mailto:chuck@observingthesky.org Charles A. Wood]</p>
 +
      <p align="center" class="main_titles"><b>Technical Consultant:</b><br>
 +
      [mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
 +
      <p align="center" class="main_titles"><b>[mailto:webmaster@entropysponge.com Contact Webmaster]</b></p>
 +
      <p align="center" class="main_titles"><b>A service of:</b><br>
 +
      <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>
 +
      </tr>
 +
</table>
 +
 +
 +
 +
<p>&nbsp;</p>
  
  

Revision as of 15:35, 4 January 2015

Volcanic Rump

Volcanic Rump

February 15, 2004
<IMG SRC="images/LPOD-2004-02-15.jpeg" NAME="main_image" width="412" height="400" border="0">
Image Credit: Apollo 15 (AS15-97-13252)

Volcanic Rump

We think of the Apollo missions as being near equatorial - and the landing sites were - but the sinusoidal orbit of the Command Modules took them as much as 25 degrees from the equator. And by pointing a handheld Hasselblad toward the horizon, the lone astronaut in the CM could image as far as 40 degrees north, as in this near-profile view of Rumker. This ~60 km wide and few hundred meters high mound can be considered as the largest lunar dome. It is a complex structure with a broad, low-angle rise that hosts 6 to 10 smaller, mostly steeper sided domes. Lunar Orbiter pictures show that at least two of these small domes have summit pit craters. Rumker has an off-center flat interior, so that the overall structure appears like a broad ring. It is a bizarre feature that clearly has volcanic features, but its also possible that some of its elevation results from uplift. Two other things to note: The wrinkle ridges at the lower right also show a two component structure. They commonly have a relatively sharp crestal ridge that rides on a broader, gentler base. Second, did you notice the line of clustered small craters running diagonally across the bottom left? They are secondary impact craters, but the source crater isn't obvious.

Related Links:
Rumker - father and son
Mons Rumker Geology

Tomorrow's LPOD: The Image that Launched LPOD!

<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>


 


COMMENTS?

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

Retrieved from "https://www2.lpod.org/index.php?title=February_15,_2004&oldid=11416"