Difference between revisions of "September 7, 2004"
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=Helen's Husband= | =Helen's Husband= | ||
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| − | <td><div align="center" class="main_sm">Image Credit: [mailto:kcpaulhk@yahoo.com.hk K.C. Pau]</div></td> | + | <td><div align="center" class="main_sm"> |
| + | Image Credit: [mailto:kcpaulhk@yahoo.com.hk K.C. Pau] | ||
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10" f/6 Newtonian with 5X barlow and mosaic of two images</p> | 10" f/6 Newtonian with 5X barlow and mosaic of two images</p> | ||
<p><b>Related Links: </b><br> | <p><b>Related Links: </b><br> | ||
| − | [ | + | [http://www.lpi.usra.edu/research/lunar_orbiter/images/img/iv_090_h2.jpg Lunar Orbiter IV View ]<br> |
Rukl Atlas of the Moon Sheet 23</p> | Rukl Atlas of the Moon Sheet 23</p> | ||
| − | <p><b>Tomorrow's LPOD:</b> Where in the Moon is | + | <p><b>Yesterday's LPOD:</b> [[September 6, 2004|Terrific Taruntius]] </p> |
| + | <p><b>Tomorrow's LPOD:</b> [[September 8, 2004|Where in the Moon is Nielsen?]] </p> | ||
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<td><p align="center" class="main_titles"><b>Author & Editor:</b><br> | <td><p align="center" class="main_titles"><b>Author & Editor:</b><br> | ||
[mailto:tychocrater@yahoo.com Charles A. Wood]</p> | [mailto:tychocrater@yahoo.com Charles A. Wood]</p> | ||
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Latest revision as of 13:42, 15 March 2015
Helen's Husband
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Image Credit: K.C. Pau |
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Helen's Husband Although the lunar crater Menelaus is named for a Greek astronomer in ancient Alexandria, I prefer to think instead of another Menelaus, the warrior husband of Helen of Troy. The lunar Menelaus is a 27 km wide, 2.6 km deep crater straddling the rim of the Serenitatis basin and the mare that fills the basin. If the mare really were an ocean of water, Menelaus would be the castle guarding this stretch of the coast. But the real interest here is the cluster of rilles just north of Menelaus. These Menelaus Rilles are in the older and darker annulus of Serenitatis lavas. There seem to be two families of rilles - first are the three to four strands of rilles that parallel the basin rim. These probably formed by cracking as the mare-heavy center of Serenitatis subsided. Nearly at right angle to these narrow rilles are two or three shorter rilles that are partially lines of collapse pits - see Lunar Orbiter image for details. KC's low sun image reveals that the western most of the rilles cuts thru the middle of a low dome. The ALPO dome map shows six possible domes in this region, but KC's great image renders that number questionable. Technical Details: Related Links: Yesterday's LPOD: Terrific Taruntius Tomorrow's LPOD: Where in the Moon is Nielsen?
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