Difference between revisions of "May 7, 2011"
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<em>south up image by [mailto:yukichankkk@yahoo.co.jp Morio Higashida], Osaka,Japan</em><br /> | <em>south up image by [mailto:yukichankkk@yahoo.co.jp Morio Higashida], Osaka,Japan</em><br /> | ||
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| − | Sinus Iridum and its surrounding half-crater rim, the Jura Mountains, is a favorite of probably every lunar observer. | + | Sinus Iridum and its surrounding half-crater rim, the Jura Mountains, is a favorite of probably every lunar observer. |
| − | The mountains always seem to catch the light, and in the best of illuminations as Morio captured, the curved ridge | + | The mountains always seem to catch the light, and in the best of illuminations as Morio captured, the curved ridge |
| − | is speckles of brightness with darkness on either side. Having the terminator pass through the floor of the sinus is | + | is speckles of brightness with darkness on either side. Having the terminator pass through the floor of the sinus is |
| − | uncommon, and here each small crater stands out as a fat ring of light. The low lighting also emphasizes the mare | + | uncommon, and here each small crater stands out as a fat ring of light. The low lighting also emphasizes the mare |
| − | ridges. There seem to be two families of intersecting ridges - most are about parallel to the shore of Mare Imbrium. | + | ridges. There seem to be two families of intersecting ridges - most are about parallel to the shore of Mare Imbrium. |
| − | The longest of these ridges starts near the Straight Range and widens as it passes Prom. Laplace and continues | + | The longest of these ridges starts near the Straight Range and widens as it passes Prom. Laplace and continues |
| − | across Iridum. Shorter ridges closer to the Jura are about parallel. This family of mare ridges gives the impression | + | across Iridum. Shorter ridges closer to the Jura are about parallel. This family of mare ridges gives the impression |
| − | of waves lapping onto the shore. The second family of ridges is really just one that seems to continue the curve of | + | of waves lapping onto the shore. The second family of ridges is really just one that seems to continue the curve of |
| − | the crater rim out past Prom Laplace. It crosses the broader ocean wave ridge, and doesn't really bend to connect | + | the crater rim out past Prom Laplace. It crosses the broader ocean wave ridge, and doesn't really bend to connect |
| − | back to Prom. Heraclides to the west, but an overhead view shows that it is the right place to mark the vanquished | + | back to Prom. Heraclides to the west, but an overhead view shows that it is the right place to mark the vanquished |
| − | rim of the ancient Jura crater.<br /> | + | rim of the ancient Jura crater. |
| + | <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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Morio's [http://mo.atz.jp/ website]<br /> | Morio's [http://mo.atz.jp/ website]<br /> | ||
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| + | <hr /> | ||
<p><b>Yesterday's LPOD:</b> [[May 6, 2011|Beyond Frigoris]] </p> | <p><b>Yesterday's LPOD:</b> [[May 6, 2011|Beyond Frigoris]] </p> | ||
<p><b>Tomorrow's LPOD:</b> [[May 8, 2011|Monday Morning Quarterbacking, 4 Decades Later]] </p> | <p><b>Tomorrow's LPOD:</b> [[May 8, 2011|Monday Morning Quarterbacking, 4 Decades Later]] </p> | ||
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{{wiki/ArticleFooter}} | {{wiki/ArticleFooter}} | ||
Revision as of 17:54, 1 March 2015
Great Rainbow
south up image by Morio Higashida, Osaka,Japan
Sinus Iridum and its surrounding half-crater rim, the Jura Mountains, is a favorite of probably every lunar observer.
The mountains always seem to catch the light, and in the best of illuminations as Morio captured, the curved ridge
is speckles of brightness with darkness on either side. Having the terminator pass through the floor of the sinus is
uncommon, and here each small crater stands out as a fat ring of light. The low lighting also emphasizes the mare
ridges. There seem to be two families of intersecting ridges - most are about parallel to the shore of Mare Imbrium.
The longest of these ridges starts near the Straight Range and widens as it passes Prom. Laplace and continues
across Iridum. Shorter ridges closer to the Jura are about parallel. This family of mare ridges gives the impression
of waves lapping onto the shore. The second family of ridges is really just one that seems to continue the curve of
the crater rim out past Prom Laplace. It crosses the broader ocean wave ridge, and doesn't really bend to connect
back to Prom. Heraclides to the west, but an overhead view shows that it is the right place to mark the vanquished
rim of the ancient Jura crater.
Chuck Wood
Technical Details
13 Apr.2011. 11h 05m 53s (UT). Takahashi Mewlon250 + DMK31AU03
Related Links
Rükl plate 10
Morio's website
Yesterday's LPOD: Beyond Frigoris
Tomorrow's LPOD: Monday Morning Quarterbacking, 4 Decades Later
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