https://www2.lpod.org/index.php?title=June_4,_2021&feed=atom&action=historyJune 4, 2021 - Revision history2024-03-28T09:31:57ZRevision history for this page on the wikiMediaWiki 1.31.1https://www2.lpod.org/index.php?title=June_4,_2021&diff=45925&oldid=prevApi: Created page with "__NOTOC__ =Redder Spots= Originally published October 16, 2011 <!-- Start of content --> <!-- ws:start:WikiTextHeadingRule:0:<h1> --> <!-- ws:start:WikiTextLocalIma..."2021-06-04T08:05:06Z<p>Created page with "__NOTOC__ =Redder Spots= Originally published October 16, 2011 <!-- Start of content --> <!-- ws:start:WikiTextHeadingRule:0:<h1> --> <!-- ws:start:WikiTextLocalIma..."</p>
<p><b>New page</b></p><div>__NOTOC__<br />
=Redder Spots=<br />
Originally published October 16, 2011<br />
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<em>image from [http://www.europlanet-eu.org/outreach/images/stories/ep/news/epsc2011/lroc_picture2.jpg NASA/GSFC/Arizona State University]. LRO WAC Color R 566nm, G 360nm, B 321 nm. Red SPots: R Riphaeus Mts, H Helmet, D Darney, L Lassell.</em><br /><br />
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In the late 1950s, when few scientists studied the Moon, Ewen Whitaker borrowed a technique from Fritz Zwicky, a galactic astronomer,<br />
to [http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1972Moon....4..348W&amp;amp;data_type=PDF_HIGH&amp;amp;whole_paper=YES&amp;amp;type=PRINTER&amp;amp;filetype=.pdf image] the Moon through red and blue filters. By combining these images in a way to eliminate albedo, Ewen was able to identify regions<br />
of distinctly different colors, which we now know reflect different soil compositions. Jim Head and I studied Ewen's images and [http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1975LPICo.234..189W&amp;amp;data_type=PDF_HIGH&amp;amp;whole_paper=YES&amp;amp;type=PRINTER&amp;amp;filetype=.pdf described]<br />
a number of red spots that seemed like they might be volcanic rocks with compositions different than mare lavas. Now, color filtered images<br />
with the Wide Angle Camera of the Lunar Reconnaissance Orbiter have updated Ewen's color contrast images with much higher resolution.<br />
Maria with medium to high titanium contents are blue, but what is interesting here are the very red, low titanium red spots labeled with letters.<br />
Each represents a non-mare volcanic area, that we know, but what controls their distribution is still uncertain.<br />
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /><br />
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<strong>Related Links</strong><br /><br />
Rükl plate [https://the-moon.us/wiki/R%C3%BCkl_42 42]<br /><br />
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<p><b>Yesterday's LPOD:</b> [[June 3, 2021|Orangester]] </p><br />
<p><b>Tomorrow's LPOD:</b> [[June 5, 2021|FFC]] </p><br />
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