|
|
| Line 1: |
Line 1: |
| − | __NOTOC__
| + | |
| − | =Sea of Dryness=
| |
| − | <table width="640" border="0" align="center" cellpadding="6" cellspacing="2">
| |
| − | <tr>
| |
| − | </tr>
| |
| − | </table>
| |
| − | <table width="640" border="0" align="center" cellpadding="6" cellspacing="2">
| |
| − | <tr>
| |
| − | <td colspan="2"><div align="center">
| |
| − | ["javascript:;" onMouseOver="MM_swapImage('main_image','','images/LPOD-2004-02-18b.jpeg',1)" onMouseOut="MM_swapImgRestore()"
| |
| − | [[File:LPOD-2004-02-18.jpeg|LPOD-2004-02-18.jpeg]]]</div>
| |
| − | </td>
| |
| − | </tr>
| |
| − | </table>
| |
| − | <table width="100%" border="0" cellpadding="8">
| |
| − | <tr>
| |
| − | <td><div align="center"><p>Image Credit: [mailto:gmengoli@libero.it Giorgio Mengoli]</p></div></td>
| |
| − | </tr>
| |
| − | </table>
| |
| − | <table class="story" border="0" bgcolor="#FFFFFF" width="90%" cellpadding="10" align="center"><tr><td>
| |
| − | <p class="story" align="center"><b>Sea of Dryness</b></p>
| |
| − | <p class="story" align="left">The classical names for the lunar dark areas were all nautical, but all were dreadful misnomers since the Moon
| |
| − | has always lacked seas and oceans. So today, we will examine the Sea of Dryness rather than Mare Humorum, the Sea
| |
| − | of Moisture. Regional views, such as this superb image by Giorgio Mengoli, are invaluable for understanding an
| |
| − | entire structural portion of the Moon. Many of the details visible here relate to the impact basin structure of
| |
| − | the Humorum basin. The mare itself partially fills the basin depression with an estimated 3 km thickness of lava.
| |
| − | The rim of the basin is most clearly visible in a partial arc running from SW of
| |
| − | ["../01/LPOD-2004-01-15.htm" Gassendi] south towards Liebig. Basinward of this arc is a scarp, reaching
| |
| − | almost to Doppelmayer, that marks where the basin center dropped downward. Some of these fractures apparently
| |
| − | allowed gas-rich magma to reach the surface making the dark-hued pyroclastic deposit and source rille west of
| |
| − | Doppelmayer. The wrinkle ridges along the eastern edges of the mare mark an inner basin ring, and the famous
| |
| − | ["../01/LPOD-2004-01-26.htm" rilles] that cut Hippalus show where the weight of the mare lavas bent and
| |
| − | fractured the edge terrain. And there are many more stories in this image, but we will wait for future LPODs!
| |
| − | Click image above to see nomenclature. </p>
| |
| − | <p><b>Technical Details:</b><br>
| |
| − | Takahashi cassegrain Mewlon 210 - 8" F/11.5 - 2415mm and HX516 ccd color 5300K.</p>
| |
| − | <p class="story"><b>Related Links:</b><br>
| |
| − | [http://digilander.libero.it/gm2/home.htm High Resolution CCD Images ]</p>
| |
| − | <p class="story"> <b>Tomorrow's LPOD:</b> Max Goes to the Moon</p>
| |
| − | </td></tr>
| |
| − | </table>
| |
| − | <!-- start bottom -->
| |
| − | <table width="100%" border="0" cellspacing="2" cellpadding="4">
| |
| − | <tr>
| |
| − | <td><hr></td>
| |
| − | </tr>
| |
| − | <tr>
| |
| − | <td>
| |
| − | <p align="center" class="main_titles"><b>Author & Editor:</b><br>
| |
| − | [mailto:tychocrater@yahoo.com 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>A service of:</b><br>
| |
| − | [http://www.observingthesky.org/ ObservingTheSky.Org]</p>
| |
| − | <p align="center" class="main_titles"><b>Visit these other PODs:</b> <br>
| |
| − | [http://antwrp.gsfc.nasa.gov/apod/astropix.html Astronomy] | [http://www.msss.com/ Mars] | [http://epod.usra.edu/ Earth]</p></td>
| |
| − | </tr>
| |
| − | </table>
| |
| − | <p> </p>
| |
| − | ----
| |
| − | ===COMMENTS?===
| |
| − | Register, and click on the <b>Discussion</b> tab at the top of the page.
| |
