https://www2.lpod.org/index.php?title=November_19,_2021&feed=atom&action=historyNovember 19, 2021 - Revision history2024-03-29T08:48:13ZRevision history for this page on the wikiMediaWiki 1.31.1https://www2.lpod.org/index.php?title=November_19,_2021&diff=46239&oldid=prevApi: Created page with "__NOTOC__ =Limb Magic= Originally published January 5, 2012 <!-- Start of content --> <!-- ws:start:WikiTextHeadingRule:0:<h1> --> <!-- ws:start:WikiTextLocalImageR..."2021-11-19T09:05:07Z<p>Created page with "__NOTOC__ =Limb Magic= Originally published January 5, 2012 <!-- Start of content --> <!-- ws:start:WikiTextHeadingRule:0:<h1> --> <!-- ws:start:WikiTextLocalImageR..."</p>
<p><b>New page</b></p><div>__NOTOC__<br />
=Limb Magic=<br />
Originally published January 5, 2012<br />
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<em>image by [mailto:HP-Unigraph@gmx.de Harald Paleske], Langendorf, Germany</em><br /><br />
<em>Note: While working on a future Sky &amp; Telescope Exploring the Moon column I came across this excellent LPOD from [http://www2.lpod.org/wiki/August_16,_2008 Aug 16, 2008]</em> <br />
<em>that is well worth revisting. In the comments in the 2008 LPOD Danny Caes pointed out that the crater behind Drygalski on the left is</em> <br />
<em>Ashbrook at 112°W longitude. I've not seen a better image.</em> <br />
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Beyond [http://www2.lpod.org/wiki/August_4,_2008 Bailly], almost (85° W longitude) on the mean limb, is a large crater that is infrequently seen. With a diameter of 149 (or 163 km <br />
according to IAU and Rükl, respectively), [https://the-moon.us/wiki/Drygalski Drygalski] is ~50% larger than Copernicus. The only nearside craters with a relatively fresh <br />
classical Copernican look that are bigger are nearby [[April_9,_2004|Hausen]] (167 km) and distant [[March_7,_2006|Humboldt]] (207 km) and [[January_7,_2004|Petavius]] (177 km). Why <br />
are these big craters near the limb? Harald's large scale image of Drygalski shows the smooth floor, and hints at the rougher floor behind <br />
the central peak. A terrace is visible on the left wall but the right wall seems more disorganized, probably because of the larger number <br />
of craters that cut that side, visible both here and in the Lunar Orbiter IV [https://the-moon.us/wiki/Drygalski view].<br />
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /><br />
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<strong>Technical Details</strong><br /><br />
2008-07-26, 4:42 UT. 408mm Newton f 8, 5 m, DMK 1/30sec. exposure, red filter, stack of 300 frames, 3 picture mosaic; seeing good (7/10)<br /><br />
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<strong>Related Links</strong><br /><br />
Rükl plates [https://the-moon.us/wiki/R%C3%BCkl_72 72] &amp; VI<br /><br />
Harald's excellent Solar (with Moon coming) [http://www.unigraph.de/ website]<br /><br />
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<p><b>Yesterday's LPOD:</b> [[November 18, 2021|Quiet Crisium]] </p><br />
<p><b>Tomorrow's LPOD:</b> [[November 20, 2021|Where They Are]] </p><br />
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