Difference between revisions of "March 29, 2004"
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=Hoover Dam (and Surroundings)= | =Hoover Dam (and Surroundings)= | ||
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| − | + | <td colspan="2"><div align="center"> | |
| − | + | [[File:LPOD-2004-03-29.jpeg|LPOD-2004-03-29.jpeg]]</div> | |
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| − | + | <td><div align="center" span class="main_sm">Image Credit: [mailto:sqrlman@core.com Stephen Keene]</div></td> | |
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<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>Hoover Dam (and Surroundings) </b></p> | |
| − | + | <p class="story" align="left"> The 97 km wide crater Arzachel is often overlooked, being near the superstars of Alphonsus and Ptolemaeus. But | |
| − | + | Steve Keene became fascinated with Arzachel early in March and, despite average seeing, acquired this fine image. | |
| − | + | Noticing the two lines of small mounds between the central peak and the crater to the east, Steve commented that | |
| − | + | it looks like a runway. He also said that the side of the central peak facing the runway looks carved out the | |
| − | + | face of the mountain so it has an arched surface like Hoover Dam. Comparing Steve's image with the higher Sun | |
| − | + | Lunar Orbiter IV one linked to below shows that Steve caught nearly all the details seen from orbit. Notice | |
| − | + | especially the thin rilles north and northeast of the central peaks. Another intriguing feature that I didn't | |
| − | + | see at first is the patch of smooth crater floor just north of the peak's shadow. This area lacks the small | |
| − | + | bumps and pits that characterize most of the floor. It seems to be a younger, uncratered surface. Could it be | |
| − | + | young volcanism (but its not dark at full Moon) or is there a better explanation? | |
| − | + | </p> | |
| − | + | <p><b>Technical Details:</b><br> | |
| − | + | Sony Digital 8 and a Coulter 13. Processing with Registax and PhotoShop.</p> | |
| − | + | <p class="story"><b>Related Links:</b><br> | |
| − | + | [http://www.lpi.usra.edu/research/lunar_orbiter/images/img/iv_108_h2.jpg Lunar Orbiter IV view]</p> | |
| − | + | <p class="story"> <b>Tomorrow's LPOD:</b> Silicic Domes?</p> | |
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| − | + | <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> | |
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===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 18:18, 4 January 2015
Hoover Dam (and Surroundings)
 |
Image Credit: Stephen Keene |
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Hoover Dam (and Surroundings) The 97 km wide crater Arzachel is often overlooked, being near the superstars of Alphonsus and Ptolemaeus. But Steve Keene became fascinated with Arzachel early in March and, despite average seeing, acquired this fine image. Noticing the two lines of small mounds between the central peak and the crater to the east, Steve commented that it looks like a runway. He also said that the side of the central peak facing the runway looks carved out the face of the mountain so it has an arched surface like Hoover Dam. Comparing Steve's image with the higher Sun Lunar Orbiter IV one linked to below shows that Steve caught nearly all the details seen from orbit. Notice especially the thin rilles north and northeast of the central peaks. Another intriguing feature that I didn't see at first is the patch of smooth crater floor just north of the peak's shadow. This area lacks the small bumps and pits that characterize most of the floor. It seems to be a younger, uncratered surface. Could it be young volcanism (but its not dark at full Moon) or is there a better explanation? Technical Details: Related Links: Tomorrow's LPOD: Silicic Domes? |
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Author & Editor: Technical Consultant: A service of: |
COMMENTS?
Click on this icon File:PostIcon.jpg at the upper right to post a comment.
