Difference between revisions of "November 30, 2009"
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− | <em>image by [mailto:jocelyn.serot@wanadoo.fr | + | <em>image by [mailto:jocelyn.serot@wanadoo.fr Jocelyn Sérot], France</em><br /> |
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− | I've always thought of Plinius as a staid crater, even though its position suggests a fortress guarding a strait. But with Jocelyn's two low and opposing Sun views the crater and its relation to the surroundings are more dramatic and more interesting. Both images show that the crater definitely formed on top of the mare lavas of northern Tranquillitatis. The ridges and furrows of the continuus ejecta deposit that extend out from the glacis (the wreath of elevated rim material) covers the mare, but unfortunately don't extend far enough to the north to see if the crater formed after the lighter-hued younger lavas in the center of Serenitatis. But there are other overlap relationships which provide hints. Notice the nearby linear Plinius Rille that points toward Dawes to the right. That rille is believed to have formed when the Serenitatis Basin subsided due to the added load of the mare lavas. But we don't know if the rilles formed following the main flooding of the basin or the more recent limited central flooding. The fact that ejecta from Plinius [http://www.lpi.usra.edu/resources/apollo/frame/?AS17-P-2329 | + | I've always thought of Plinius as a staid crater, even though its position suggests a fortress guarding a strait. But with Jocelyn's two low and opposing Sun views the crater and its relation to the surroundings are more dramatic and more interesting. Both images show that the crater definitely formed on top of the mare lavas of northern Tranquillitatis. The ridges and furrows of the continuus ejecta deposit that extend out from the glacis (the wreath of elevated rim material) covers the mare, but unfortunately don't extend far enough to the north to see if the crater formed after the lighter-hued younger lavas in the center of Serenitatis. But there are other overlap relationships which provide hints. Notice the nearby linear Plinius Rille that points toward Dawes to the right. That rille is believed to have formed when the Serenitatis Basin subsided due to the added load of the mare lavas. But we don't know if the rilles formed following the main flooding of the basin or the more recent limited central flooding. The fact that ejecta from Plinius [http://www.lpi.usra.edu/resources/apollo/frame/?AS17-P-2329 fills] part of the rille, means that at least some of the Serenitatis lavas are older than the impact that created Plinius.<br /> |
<br /> | <br /> | ||
− | <em>[mailto:tychocrater@yahoo.com | + | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> |
<br /> | <br /> | ||
<strong>Technical Details</strong><br /> | <strong>Technical Details</strong><br /> | ||
Right: 2009-06-13; 3h30 TU. Mewlon 210 + Barlow 2x (F=5070 mm) + Astronomik Red filter + DMK 31AF03 camera.<br /> | Right: 2009-06-13; 3h30 TU. Mewlon 210 + Barlow 2x (F=5070 mm) + Astronomik Red filter + DMK 31AF03 camera.<br /> | ||
− | Left: 2009-05-29; 19h59 TU. Same equipment. Note - I have over enhanced these images to maximize interpretability - see Jocelyn's [http://astrosurf.com/legalet/Galeries/LuneHR_2009.html | + | Left: 2009-05-29; 19h59 TU. Same equipment. Note - I have over enhanced these images to maximize interpretability - see Jocelyn's [http://astrosurf.com/legalet/Galeries/LuneHR_2009.html website] to see his more tonally continuous processing.<br /> |
<br /> | <br /> | ||
<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+24 24]<br /> | Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+24 24]<br /> | ||
− | Jocelyn's lunar [http://astrosurf.com/legalet/Galeries/LuneHR_2009.html | + | Jocelyn's lunar [http://astrosurf.com/legalet/Galeries/LuneHR_2009.html images]<br /> |
<br /> | <br /> | ||
<hr /> | <hr /> | ||
− | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 | + | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 LPOD!]<br /> |
</div> | </div> | ||
---- | ---- | ||
===COMMENTS?=== | ===COMMENTS?=== | ||
− | + | Register, and click on the <b>Discussion</b> tab at the top of the page. |
Revision as of 19:05, 17 January 2015
One Tidbit in Images Full of Details
image by Jocelyn Sérot, France
I've always thought of Plinius as a staid crater, even though its position suggests a fortress guarding a strait. But with Jocelyn's two low and opposing Sun views the crater and its relation to the surroundings are more dramatic and more interesting. Both images show that the crater definitely formed on top of the mare lavas of northern Tranquillitatis. The ridges and furrows of the continuus ejecta deposit that extend out from the glacis (the wreath of elevated rim material) covers the mare, but unfortunately don't extend far enough to the north to see if the crater formed after the lighter-hued younger lavas in the center of Serenitatis. But there are other overlap relationships which provide hints. Notice the nearby linear Plinius Rille that points toward Dawes to the right. That rille is believed to have formed when the Serenitatis Basin subsided due to the added load of the mare lavas. But we don't know if the rilles formed following the main flooding of the basin or the more recent limited central flooding. The fact that ejecta from Plinius fills part of the rille, means that at least some of the Serenitatis lavas are older than the impact that created Plinius.
Chuck Wood
Technical Details
Right: 2009-06-13; 3h30 TU. Mewlon 210 + Barlow 2x (F=5070 mm) + Astronomik Red filter + DMK 31AF03 camera.
Left: 2009-05-29; 19h59 TU. Same equipment. Note - I have over enhanced these images to maximize interpretability - see Jocelyn's website to see his more tonally continuous processing.
Related Links
Rükl plate 24
Jocelyn's lunar images
COMMENTS?
Register, and click on the Discussion tab at the top of the page.