Difference between revisions of "December 26, 2011"
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=Boxing Day Present= | =Boxing Day Present= | ||
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<em>image from [http://lroc.sese.asu.edu/news/index.php?/archives/500-Aristarchus-Spectacular!.html#extended LROC Featured Image], [NASA/GSFC/Arizona State University]</em> <br /> | <em>image from [http://lroc.sese.asu.edu/news/index.php?/archives/500-Aristarchus-Spectacular!.html#extended LROC Featured Image], [NASA/GSFC/Arizona State University]</em> <br /> | ||
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| − | Thanks to Mark Robinson, leader of the LRO Camera team, for posting this dramatic image on Christmas Day. | + | Thanks to Mark Robinson, leader of the LRO Camera team, for posting this dramatic image on Christmas Day. |
| − | This oblique view of the western floor and wall of Aristarchus was obtained by pointing the Narrow Angle Camera | + | This oblique view of the western floor and wall of Aristarchus was obtained by pointing the Narrow Angle Camera |
| − | obliquely while orbiting only 26 km above the lunar surface. A 327 mb full res image can be downloaded, and a | + | obliquely while orbiting only 26 km above the lunar surface. A 327 mb full res image can be downloaded, and a |
| − | video is available. But I like this overview panorama because it feels like the view out the porthole of a transport | + | video is available. But I like this overview panorama because it feels like the view out the porthole of a transport |
| − | vehicle coming in for a landing - or a crash. Aristarchus formed on the boundary of the uplifted Aristarchus Plateau | + | vehicle coming in for a landing - or a crash. Aristarchus formed on the boundary of the uplifted Aristarchus Plateau |
| − | and the surrounding mare lavas, accounting for the bright and dark bands and clumps of material along the walls. | + | and the surrounding mare lavas, accounting for the bright and dark bands and clumps of material along the walls. |
| − | Mark suggests that the prominent dark band left of center is impact melt, and some of the smaller dark strands | + | Mark suggests that the prominent dark band left of center is impact melt, and some of the smaller dark strands |
| − | coming from the rim crest down the wall is pyroclastic material. The immediate surrounding of the rim does look | + | coming from the rim crest down the wall is pyroclastic material. The immediate surrounding of the rim does look |
| − | like it is mantled with dark powdery material, but that idea leaves me confused because Aristachus is a very young | + | like it is mantled with dark powdery material, but that idea leaves me confused because Aristachus is a very young |
| − | crater with an estimated age of about 0.5 b.y. Volcanism on the Moon largely stopped by 2 b.y. ago with only small | + | crater with an estimated age of about 0.5 b.y. Volcanism on the Moon largely stopped by 2 b.y. ago with only small |
| − | eruptions of mare basalts dribbling out at 1 b.y. ago. Such high resolution views as LRO provides will allow relations | + | eruptions of mare basalts dribbling out at 1 b.y. ago. Such high resolution views as LRO provides will allow relations |
| − | between multiple geologic units to be examined in great detail.<br /> | + | between multiple geologic units to be examined in great detail. |
| + | <br /> | ||
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | ||
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<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
| − | Rükl plate [ | + | Rükl plate [https://the-moon.us/wiki/R%C3%BCkl_18 18]<br /> |
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<hr /> | <hr /> | ||
| + | <p><b>Yesterday's LPOD:</b> [[December 25, 2011|Santa Moon]] </p> | ||
| + | <p><b>Tomorrow's LPOD:</b> [[December 27, 2011|Two Friends in the Sky, Two Friends On Earth]] </p> | ||
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Latest revision as of 18:45, 13 October 2018
Boxing Day Present
image from LROC Featured Image, [NASA/GSFC/Arizona State University]
Thanks to Mark Robinson, leader of the LRO Camera team, for posting this dramatic image on Christmas Day.
This oblique view of the western floor and wall of Aristarchus was obtained by pointing the Narrow Angle Camera
obliquely while orbiting only 26 km above the lunar surface. A 327 mb full res image can be downloaded, and a
video is available. But I like this overview panorama because it feels like the view out the porthole of a transport
vehicle coming in for a landing - or a crash. Aristarchus formed on the boundary of the uplifted Aristarchus Plateau
and the surrounding mare lavas, accounting for the bright and dark bands and clumps of material along the walls.
Mark suggests that the prominent dark band left of center is impact melt, and some of the smaller dark strands
coming from the rim crest down the wall is pyroclastic material. The immediate surrounding of the rim does look
like it is mantled with dark powdery material, but that idea leaves me confused because Aristachus is a very young
crater with an estimated age of about 0.5 b.y. Volcanism on the Moon largely stopped by 2 b.y. ago with only small
eruptions of mare basalts dribbling out at 1 b.y. ago. Such high resolution views as LRO provides will allow relations
between multiple geologic units to be examined in great detail.
Chuck Wood
Technical Details
10 November 2011
Related Links
Rükl plate 18
Yesterday's LPOD: Santa Moon
Tomorrow's LPOD: Two Friends in the Sky, Two Friends On Earth
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