Difference between revisions of "February 23, 2018"
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<em>image by [mailto:peter.wellmann@t-online.de Peter] and Christian Wellmann, Germany</em><br /> | <em>image by [mailto:peter.wellmann@t-online.de Peter] and Christian Wellmann, Germany</em><br /> | ||
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| − | A great new image gives an opportunity to examine even a familiar feature with a fresh perspective. And that is exactly the result of Christian's and Peter's view of the Apennines and western Vaporum under grazing sunrise illumination. This is a gorgeous image, with the abundance of small detail that makes accurate drawing of the lunar surface impossible. The Apennines are full of asperities, little hills and mountains enmeshed in a solid matrix of finer rocks. Small fresh craters reveal themselves by their bright crescent-shaped rims and adjacent circles of darkness. More amazing to me are the volcanic pond remnants on Mare Vaporum. A large one that I had never noticed before (but is visible on [http://www.lpi.usra.edu/resources/lunar_orbiter/images/img/iv_102_h2.jpg LO IV]) is at the bottom right of the image. Its walls are probably made of volcanic spatter that once contained a liquid pond of lava. Similar ponding is indicated along the western edge of [ | + | A great new image gives an opportunity to examine even a familiar feature with a fresh perspective. And that is exactly the result of Christian's and Peter's view of the Apennines and western Vaporum under grazing sunrise illumination. This is a gorgeous image, with the abundance of small detail that makes accurate drawing of the lunar surface impossible. The Apennines are full of asperities, little hills and mountains enmeshed in a solid matrix of finer rocks. Small fresh craters reveal themselves by their bright crescent-shaped rims and adjacent circles of darkness. More amazing to me are the volcanic pond remnants on Mare Vaporum. A large one that I had never noticed before (but is visible on [http://www.lpi.usra.edu/resources/lunar_orbiter/images/img/iv_102_h2.jpg LO IV]) is at the bottom right of the image. Its walls are probably made of volcanic spatter that once contained a liquid pond of lava. Similar ponding is indicated along the western edge of [https://the-moon.us/wiki/Rima+Conon Sinus Fidei], whose lavas probably came from the short and sinuous Conon Rille. A more mysterious feature is just visible on the floor of the lava-covered depression just below the center of the image. There are 3 to 5 short parallel ridges, perhaps made of closely spaced hills of uncertain origin - lunar plowing?<br /> |
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | ||
Revision as of 18:15, 18 August 2018
A New Look
Originally published September 21, 2008
image by Peter and Christian Wellmann, Germany
A great new image gives an opportunity to examine even a familiar feature with a fresh perspective. And that is exactly the result of Christian's and Peter's view of the Apennines and western Vaporum under grazing sunrise illumination. This is a gorgeous image, with the abundance of small detail that makes accurate drawing of the lunar surface impossible. The Apennines are full of asperities, little hills and mountains enmeshed in a solid matrix of finer rocks. Small fresh craters reveal themselves by their bright crescent-shaped rims and adjacent circles of darkness. More amazing to me are the volcanic pond remnants on Mare Vaporum. A large one that I had never noticed before (but is visible on LO IV) is at the bottom right of the image. Its walls are probably made of volcanic spatter that once contained a liquid pond of lava. Similar ponding is indicated along the western edge of Sinus Fidei, whose lavas probably came from the short and sinuous Conon Rille. A more mysterious feature is just visible on the floor of the lava-covered depression just below the center of the image. There are 3 to 5 short parallel ridges, perhaps made of closely spaced hills of uncertain origin - lunar plowing?
Chuck Wood
Technical Details
04.13.2008. Meade 12" R-optics + Celestron apochromatic 2x Barlow at f = 6m + Imaging Source DMK 41 camera. Video processed with Registax 4 multipoint. Seeing was good, 7/10.
Related Links
Rükl plates 22 & 33
Yesterday's LPOD: Bright Mapping
Tomorrow's LPOD: A Celestron Orange Moon
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