Difference between revisions of "March 15, 2004"

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=Peaks of Plato=
 
=Peaks of Plato=
 
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<table width="640"  border="0" align="center" cellpadding="6" cellspacing="2">
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      <td width="50%"><h2 align="left">Peaks of Plato</h2></td>
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  <td width="50%"><h2 align="right">March 15, 2004</h2></td>
 
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<table width="85%"  border="0" align="center" cellpadding="6" cellspacing="2">
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<tr>
      <td colspan="2"><div align="center">
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<td colspan="2"><div align="center">
    [javascript:;" onMouseOver="MM_swapImage('main_image','','images/LPOD-2004-03-15b.jpeg',1)" onMouseOut="MM_swapImgRestore() <IMG SRC="images/LPOD-2004-03-15.jpeg" NAME="main_image" width="420" height="425" border="0">]</div>
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[javascript:;" onMouseOver="MM_swapImage('main_image','','images/LPOD-2004-03-15b.jpeg',1)" onMouseOut="MM_swapImgRestore() [[File:LPOD-2004-03-15.jpeg|LPOD-2004-03-15.jpeg]]]</div>
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<table width="100%"  border="0" cellpadding="8">
 
<table width="100%"  border="0" cellpadding="8">
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      <td><div align="center" span class="main_sm">Image Credit:  [mailto:starman2@flash.net Wes Higgins]</div></td>
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<td><div align="center" span class="main_sm">Image Credit:  [mailto:starman2@flash.net Wes Higgins]</div></td>
    </tr>
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</tr>
 
</table>
 
</table>
  </p>
 
 
<table class="story" border="0" bgcolor="#FFFFFF" width="90%" cellpadding="10" align="center"><tr><td>
 
<table class="story" border="0" bgcolor="#FFFFFF" width="90%" cellpadding="10" align="center"><tr><td>
 
+
<p class="story" align="center"><b>Peaks of Plato </b></p>
  <p class="story" align="center"><b>Peaks of Plato </b></p>
+
<p class="story" align="left">        The Moon always repays observation. For sociological reasons (sleep and jobs), Plato is commonly studied before
 
+
midnight, and so the sunrise view with shadows cast by peaks on the eastern ramparts is most familiar. But this  
  <p class="story" align="left">        The Moon always repays observation. For sociological reasons (sleep and jobs), Plato is commonly studied before
+
wonderful sunset view, taken when the Moon was about 23 days old, reveals long shadows from the western peaks  
        midnight, and so the sunrise view with shadows cast by peaks on the eastern ramparts is most familiar. But this  
+
that most of us never see. The longest shadow is about 45 km long; Plato is 101 km wide. Surprisingly, this  
        wonderful sunset view, taken when the Moon was about 23 days old, reveals long shadows from the western peaks  
+
tallest peak on the western rim doesn't have a Greek letter designation. Most of the Greek letters for lunar  
        that most of us never see. The longest shadow is about 45 km long; Plato is 101 km wide. Surprisingly, this  
+
mountains were given by [../01/LPOD-2004-01-16.htm Madler] and Neison, but all are ignored by the  
        tallest peak on the western rim doesn't have a Greek letter designation. Most of the Greek letters for lunar  
+
International Astronomical Union because of the difficulty in identifying them. If you mouse over the image  
        mountains were given by [../01/LPOD-2004-01-16.htm Madler] and Neison, but all are ignored by the  
+
above you will see the Greek letters for Plato's rim, taken from the Blagg and Muller IAU map of 1935. I have  
        International Astronomical Union because of the difficulty in identifying them. If you mouse over the image  
+
added two (totally unofficial) additional Greek letters - omega and phi - for the two tallest peaks on Plato's  
        above you will see the Greek letters for Plato's rim, taken from the Blagg and Muller IAU map of 1935. I have  
+
western rim, which strangely lacked letters. The large rim collapse segment was labeled zeta by Madler. There are  
        added two (totally unofficial) additional Greek letters - omega and phi - for the two tallest peaks on Plato's  
+
no spacecraft heights for these peaks that I am aware of , but the US Air Force Chart and Aeronautical Center  
        western rim, which strangely lacked letters. The large rim collapse segment was labeled zeta by Madler. There are  
+
maps (available most readily in <I>The Times Altas of the Moon</I>, 1969) include the following heights derived  
        no spacecraft heights for these peaks that I am aware of , but the US Air Force Chart and Aeronautical Center  
+
from shadow measurements made in the 1960s.
        maps (available most readily in <I>The Times Altas of the Moon</I>, 1969) include the following heights derived  
+
</p>         
        from shadow measurements made in the 1960s.
+
<blockquote><TABLE CELLSPACING=2 CELLPADDING=2 BORDER=1>
  </p>         
+
<TR BGCOLOR="GRAY"><TD><CENTER>Peak  </CENTER></TD>
        <blockquote><TABLE CELLSPACING=2 CELLPADDING=2 BORDER=1>
+
<TD><CENTER>Height</CENTER></TD>
                    <TR BGCOLOR="GRAY"><TD><CENTER>Peak  </CENTER></TD>
+
</TR>
                                      <TD><CENTER>Height</CENTER></TD>
+
<TR><TD><CENTER><FONT COLOR="BLACK">delta</FONT></CENTER></TD>
                    </TR>
+
<TD><CENTER><FONT COLOR="BLACK">2440 m</FONT></CENTER></TD>
                    <TR><TD><CENTER><FONT COLOR="BLACK">delta</FONT></CENTER></TD>
+
</TR>
                        <TD><CENTER><FONT COLOR="BLACK">2440 m</FONT></CENTER></TD>
+
<TR><TD><CENTER><FONT COLOR="BLACK">omega</FONT></CENTER></TD>
                    </TR>
+
<TD><CENTER><FONT COLOR="BLACK">2300 m</FONT></CENTER></TD>
                    <TR><TD><CENTER><FONT COLOR="BLACK">omega</FONT></CENTER></TD>
+
</TR>
                        <TD><CENTER><FONT COLOR="BLACK">2300 m</FONT></CENTER></TD>
+
<TR><TD><CENTER><FONT COLOR="BLACK">gamma</FONT></CENTER></TD>
                    </TR>
+
<TD><CENTER><FONT COLOR="BLACK">2140 m</FONT></CENTER></TD>
                    <TR><TD><CENTER><FONT COLOR="BLACK">gamma</FONT></CENTER></TD>
+
</TR>
                        <TD><CENTER><FONT COLOR="BLACK">2140 m</FONT></CENTER></TD>
+
<TR><TD><CENTER><FONT COLOR="BLACK">phi</FONT></CENTER></TD>
                    </TR>
+
<TD><CENTER><FONT COLOR="BLACK">1870 m</FONT></CENTER></TD>
                    <TR><TD><CENTER><FONT COLOR="BLACK">phi</FONT></CENTER></TD>
+
</TR>
                        <TD><CENTER><FONT COLOR="BLACK">1870 m</FONT></CENTER></TD>
+
<TR><TD><CENTER><FONT COLOR="BLACK">epsilon</FONT></CENTER></TD>
                    </TR>
+
<TD><CENTER><FONT COLOR="BLACK">1790 m</FONT></CENTER></TD>
                    <TR><TD><CENTER><FONT COLOR="BLACK">epsilon</FONT></CENTER></TD>
+
</TR>
                        <TD><CENTER><FONT COLOR="BLACK">1790 m</FONT></CENTER></TD>
+
<TR><TD><CENTER><FONT COLOR="BLACK">zeta</FONT></CENTER></TD>
                    </TR>
+
<TD><CENTER><FONT COLOR="BLACK">1310 m</FONT></CENTER></TD>
                    <TR><TD><CENTER><FONT COLOR="BLACK">zeta</FONT></CENTER></TD>
+
</TR>
                        <TD><CENTER><FONT COLOR="BLACK">1310 m</FONT></CENTER></TD>
+
</TABLE>
                    </TR>
+
</blockquote>
                </TABLE>
+
<p>
        </blockquote>
+
As I stated recently there is need for modern determinations/confirmations of peak  
        <p>
+
[../02/LPOD-2004-02-04.htm heights], which will require figuring our peak  
        As I stated recently there is need for modern determinations/confirmations of peak  
+
[../02/LPOD-2004-02-04.htm nomenclature]. The IAU isn't going to do it!  
        [../02/LPOD-2004-02-04.htm heights], which will require figuring our peak  
+
</p>
        [../02/LPOD-2004-02-04.htm nomenclature]. The IAU isn't going to do it!  
+
<p><b>Technical Details:</b><br>
 +
Plato on 10/18/03. This is a stack of 224 frames from 600, taken with a Starmaster 14.5 F/4.3
 +
working at F/28, Toucam Pro Webcam, 10FPS, stacked and processed in Registax.
 
</p>
 
</p>
 
+
<p class="story"><b>Related Links:</b><br>
  <p><b>Technical Details:</b><br>
 
 
 
Plato on 10/18/03. This is a stack of 224 frames from 600, taken with a Starmaster 14.5 F/4.3
 
working at F/28, Toucam Pro Webcam, 10FPS, stacked and processed in Registax.
 
</p>
 
 
 
  <p class"story"><b>Related Links:</b><br>
 
 
 
 
[http://www.licha.de/AstroWeb/gallery_fullsize.php3?iBPId=131&iSOId=7 Images by Wes Higgins]<br>
 
[http://www.licha.de/AstroWeb/gallery_fullsize.php3?iBPId=131&iSOId=7 Images by Wes Higgins]<br>
 
[http://www.glrgroup.org/papers/13.htm Plato Gamma Shadow]</p>
 
[http://www.glrgroup.org/papers/13.htm Plato Gamma Shadow]</p>
 
+
<p class="story"> <b>Tomorrow's LPOD:</b> Lunar Ephemeris</p>
  <p class"story"> <b>Tomorrow's LPOD:</b> Lunar Ephemeris</p>
+
</td></tr>
 
 
  <p><img src="../../../MainPage/spacer.gif" width="640" height="1"></p>
 
  </td></tr>
 
 
</table>
 
</table>
 
+
<!-- start bottom -->
</td></tr>
+
<table width="100%"  border="0" cellspacing="2" cellpadding="4">
 
+
<tr>
 +
<td><hr></td>
 +
</tr>
 
<tr>
 
<tr>
  <td colspan="2" rowspan="1">
+
<td>
  <!-- start bottom -->
+
<p align="center" class="main_titles"><b>Author & Editor:</b><br>
  <table width="100%"  border="0" cellspacing="2" cellpadding="4">
+
[mailto:tychocrater@yahoo.com Charles A. Wood]</p>
    <tr>
+
<p align="center" class="main_titles"><b>Technical Consultant:</b><br>
      <td><hr width="640"></td>
+
[mailto:anthony@perseus.gr Anthony Ayiomamitis]</p>
      </tr>
+
<p align="center" class="main_titles"><b>A service of:</b><br>
    <tr>
+
[http://www.observingthesky.org/ ObservingTheSky.Org]</p>
      <td>
+
<p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
  <p align="center" class="main_titles"><b>Author & Editor:</b><br>
+
[http://antwrp.gsfc.nasa.gov/apod/astropix.html Astronomy] | [http://www.msss.com/ Mars] | [http://epod.usra.edu/ Earth]</p></td>
      [mailto:chuck@observingthesky.org Charles A. Wood]</p>
+
</tr>
      <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>
 
</table>
 
 
 
 
<p>&nbsp;</p>
 
<p>&nbsp;</p>
 
 
 
 
----
 
----
 
===COMMENTS?===  
 
===COMMENTS?===  
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.
 
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment.

Revision as of 18:17, 4 January 2015

Peaks of Plato

[javascript:;" onMouseOver="MM_swapImage('main_image',,'images/LPOD-2004-03-15b.jpeg',1)" onMouseOut="MM_swapImgRestore() LPOD-2004-03-15.jpeg]
Image Credit: Wes Higgins

Peaks of Plato

The Moon always repays observation. For sociological reasons (sleep and jobs), Plato is commonly studied before midnight, and so the sunrise view with shadows cast by peaks on the eastern ramparts is most familiar. But this wonderful sunset view, taken when the Moon was about 23 days old, reveals long shadows from the western peaks that most of us never see. The longest shadow is about 45 km long; Plato is 101 km wide. Surprisingly, this tallest peak on the western rim doesn't have a Greek letter designation. Most of the Greek letters for lunar mountains were given by [../01/LPOD-2004-01-16.htm Madler] and Neison, but all are ignored by the International Astronomical Union because of the difficulty in identifying them. If you mouse over the image above you will see the Greek letters for Plato's rim, taken from the Blagg and Muller IAU map of 1935. I have added two (totally unofficial) additional Greek letters - omega and phi - for the two tallest peaks on Plato's western rim, which strangely lacked letters. The large rim collapse segment was labeled zeta by Madler. There are no spacecraft heights for these peaks that I am aware of , but the US Air Force Chart and Aeronautical Center maps (available most readily in The Times Altas of the Moon, 1969) include the following heights derived from shadow measurements made in the 1960s.

Peak
Height
delta
2440 m
omega
2300 m
gamma
2140 m
phi
1870 m
epsilon
1790 m
zeta
1310 m

As I stated recently there is need for modern determinations/confirmations of peak [../02/LPOD-2004-02-04.htm heights], which will require figuring our peak [../02/LPOD-2004-02-04.htm nomenclature]. The IAU isn't going to do it!

Technical Details:
Plato on 10/18/03. This is a stack of 224 frames from 600, taken with a Starmaster 14.5 F/4.3 working at F/28, Toucam Pro Webcam, 10FPS, stacked and processed in Registax.

Related Links:
Images by Wes Higgins
Plato Gamma Shadow

Tomorrow's LPOD: Lunar Ephemeris


Author & Editor:
Charles A. Wood

Technical Consultant:
Anthony Ayiomamitis

A service of:
ObservingTheSky.Org

Visit these other PODs:
Astronomy | Mars | Earth

 


COMMENTS?

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