Difference between revisions of "September 20, 2011"
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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_14 14]<br /> |
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| + | <p><b>Yesterday's LPOD:</b> [[September 19, 2011|3x Giant]] </p> | ||
| + | <p><b>Tomorrow's LPOD:</b> [[September 21, 2011|Before And Way After]] </p> | ||
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Latest revision as of 18:57, 13 October 2018
Sequencing
image by Alexander N. Zaitsev, Lipetsk, Russia
What is the relationship between Bürg and Lacus Mortis? Obviously Bürg is younger because it sits on top of LM. And Bürg is younger than the lava filling that covers LM's floor. It is peculiar that two ridges from LM's rim meet in its center, which Bürg is slightly east of, and that there is very little of Bürg's continuous ejecta on that side. Is the lava to the west of Bürg younger than the crater, covering the ejecta? Looking at a LRO hi res mosaic there are far fewer craters in one patch of mare just west of Bürg than elsewhere on the west half of the floor, so the answer is yes. The trough-like rille is older than Bürg because in some parts it is filled by the crater's ejecta. It is less clear if the fault that becomes a rille is effected by Bürg's ejecta - it could have formed after the crater. I still don't know why so many tectonic features occur in LM, and all on the western half. LM is not a floor-fractured crater, it is a peculiar crater.
Chuck Wood
Technical Details
2011/09/16 Time:21:10:46 UT. Telescope SW 305/1500 + Camera VAC-135 (b/w 15 fps) with the red filter and barlow 4X
Related Links
Rükl plate 14
Yesterday's LPOD: 3x Giant
Tomorrow's LPOD: Before And Way After
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