Difference between revisions of "January 7, 2010"
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=Ridges And Patches= | =Ridges And Patches= | ||
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| − | <em>image by [mailto:astrovienna@yahoo.com Kevin Quin] Vienna, Virginia</em><br /> | + | <em>image by [mailto:astrovienna@yahoo.com" rel="nofollow Kevin Quin] Vienna, Virginia</em><br /> |
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| − | Kevin's large original [http://members.cox.net/kevinquin4/MareHumorum20091129.jpg mosaic] shows many great details, but what caught my attention on this small scale overview image is the distribution of ridges and mare. Humorum is a multi-ring basin with as many as six rings identified, the most conspicuous being the 425 km diameter one (labeled with 1s) passing through the middle of Gassendi and continuing as massifs east of Mersenius and a little beyond. The [http://the-moon.wikispaces.com/Rupes+Kelvin Kelvin Scarp] on the opposite side is part of this ring. The next ring out (2s) is visible as a rounded short ridge that abuts the north side of Mersenius, and continues as a more massive segment between [http://the-moon.wikispaces.com/R%C3%BCkl+51 de Gasparis and Palmieri.] Smaller isolated hills continue it almost to Lee. The next ring out (3) is more tenuous. Starting at the top there are smaller disconnected hills that seem to define a ring. The best way to identify these rings and others is to rectify this and other phase views to achieve overhead or map views, and then overlay circles of variable diameters to maximize the match with hills. Notice the spaces between the rings - especially at the top where a rubbly texture occurs, perhaps impact ejecta. And see how often mare patches fall into the moats between rings. Such observations can reveal structure where randomness seemed to occur.<br /> | + | Kevin's large original [http://members.cox.net/kevinquin4/MareHumorum20091129.jpg" rel="nofollow mosaic] shows many great details, but what caught my attention on this small scale overview image is the distribution of ridges and mare. Humorum is a multi-ring basin with as many as six rings identified, the most conspicuous being the 425 km diameter one (labeled with 1s) passing through the middle of Gassendi and continuing as massifs east of Mersenius and a little beyond. The [http://the-moon.wikispaces.com/Rupes+Kelvin Kelvin Scarp] on the opposite side is part of this ring. The next ring out (2s) is visible as a rounded short ridge that abuts the north side of Mersenius, and continues as a more massive segment between [http://the-moon.wikispaces.com/R%C3%BCkl+51 de Gasparis and Palmieri.] Smaller isolated hills continue it almost to Lee. The next ring out (3) is more tenuous. Starting at the top there are smaller disconnected hills that seem to define a ring. The best way to identify these rings and others is to rectify this and other phase views to achieve overhead or map views, and then overlay circles of variable diameters to maximize the match with hills. Notice the spaces between the rings - especially at the top where a rubbly texture occurs, perhaps impact ejecta. And see how often mare patches fall into the moats between rings. Such observations can reveal structure where randomness seemed to occur.<br /> |
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| − | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | + | <em>[mailto:tychocrater@yahoo.com" rel="nofollow Chuck Wood]</em><br /> |
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<strong>Technical Details</strong><br /> | <strong>Technical Details</strong><br /> | ||
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<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+51 51]<br /> | Rükl plate [http://the-moon.wikispaces.com/R%C3%BCkl+51 51]<br /> | ||
| − | Kevin's [http://members.cox.net/kevinquin3/Main.html website]<br /> | + | Kevin's [http://members.cox.net/kevinquin3/Main.html" rel="nofollow website]<br /> |
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| − | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591 LPOD!]<br /> | + | <div>You can support LPOD when you buy any book from Amazon thru [http://www.lpod.org/?page_id=591" rel="nofollow LPOD!]<br /> |
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===COMMENTS?=== | ===COMMENTS?=== | ||
Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | Click on this icon [[image:PostIcon.jpg]] at the upper right to post a comment. | ||
Revision as of 18:17, 4 January 2015
Ridges And Patches
image by " rel="nofollow Kevin Quin Vienna, Virginia
Kevin's large original " rel="nofollow mosaic shows many great details, but what caught my attention on this small scale overview image is the distribution of ridges and mare. Humorum is a multi-ring basin with as many as six rings identified, the most conspicuous being the 425 km diameter one (labeled with 1s) passing through the middle of Gassendi and continuing as massifs east of Mersenius and a little beyond. The Kelvin Scarp on the opposite side is part of this ring. The next ring out (2s) is visible as a rounded short ridge that abuts the north side of Mersenius, and continues as a more massive segment between de Gasparis and Palmieri. Smaller isolated hills continue it almost to Lee. The next ring out (3) is more tenuous. Starting at the top there are smaller disconnected hills that seem to define a ring. The best way to identify these rings and others is to rectify this and other phase views to achieve overhead or map views, and then overlay circles of variable diameters to maximize the match with hills. Notice the spaces between the rings - especially at the top where a rubbly texture occurs, perhaps impact ejecta. And see how often mare patches fall into the moats between rings. Such observations can reveal structure where randomness seemed to occur.
" rel="nofollow Chuck Wood
Technical Details
2009 Nov 29 from ~02:30 to 04:00 UT. DMK21 and C11 at f/18. 38 panels, each 2000 frames, and 250 to 1000 stacked for each in Registax, deconvolution with Astra Image, and mosaicing in Photoshop.
Related Links
Rükl plate 51
Kevin's " rel="nofollow website
COMMENTS?
Click on this icon File:PostIcon.jpg at the upper right to post a comment.
