Difference between revisions of "September 29, 2013"
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=Almost Microgeology= | =Almost Microgeology= | ||
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| − | <em>image by [mailto:gtarsoudis@gmail.com | + | <em>image by [mailto:gtarsoudis@gmail.com George Tarsoudis], Greece</em><br /> |
<br /> | <br /> | ||
| − | It used to be that there were professional astronomers and amateurs. But now, with this image and others that LPOD has featured recently, | + | It used to be that there were professional astronomers and amateurs. But now, with this image and others that LPOD has featured recently, |
| − | there is only excellent imaging, whether from a giant telescope, a backyard one or an orbiting camera. I am amazed to see a terrestrial image | + | there is only excellent imaging, whether from a giant telescope, a backyard one or an orbiting camera. I am amazed to see a terrestrial image |
| − | of this scale and quality. The dramatic lighting highlights the ejecta from Theophilus, with the smooth impact melt ponds just north of the | + | of this scale and quality. The dramatic lighting highlights the ejecta from Theophilus, with the smooth impact melt ponds just north of the |
| − | crater's rim. Also very conspicuous is a small rille that looks like a twig with branches at the top end. This has been imaged [ | + | crater's rim. Also very conspicuous is a small rille that looks like a twig with branches at the top end. This has been imaged [[October_6,_2007|before]] but it is |
more distinctive here.<br /> | more distinctive here.<br /> | ||
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| + | </td> | ||
| + | <td>The rille also crosses a circular rise that George proposes is a | ||
| + | megadome similar to the Valentine Dome. The dome (outlined | ||
| + | in red) is undetectable in the image due to the distractions of | ||
| + | Theophilus' ejecta, but using LRO QuickMap elevations George | ||
| + | found that it is roughly 85 km wide and 300-400 m high. The | ||
| + | existence of the dome may explain the location of the rille. Few | ||
| + | rilles occur in this area, but a rille does cross the Valentine | ||
| + | Dome so this may be a similar feature. | ||
<br /> | <br /> | ||
| + | <br /> | ||
| + | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | ||
| + | <br /> | ||
| + | <strong>Technical Details</strong><br /> | ||
| + | Sept 25, 2013, 00:38:33 UT. Telescope SkyWatcher 14 inch <br /> | ||
| + | @f/4.5, camera Unibrain Fire-i 785, filter red.<br /> | ||
| + | <br /> | ||
| + | <strong>Related Links</strong><br /> | ||
| + | <em>[[21st Century Atlas of the Moon|21st Century Atlas]]</em> chart 7.<br /> | ||
| + | George's [http://www.lunar-captures.com website] <br /> | ||
<hr /> | <hr /> | ||
| − | + | <br /> | |
| − | </ | + | <!-- Removed reference to store page 2 --> |
| − | ---- | + | <p><b>Yesterday's LPOD:</b> [[September 28, 2013|Extreme Makeover]] </p> |
| − | + | <p><b>Tomorrow's LPOD:</b> [[September 30, 2013|A Bridge Too Far, an Observation Quite Good]] </p> | |
| − | + | <!-- End of content --> | |
| + | {{wiki/ArticleFooter}} | ||
Latest revision as of 07:37, 28 October 2018
Almost Microgeology
image by George Tarsoudis, Greece
It used to be that there were professional astronomers and amateurs. But now, with this image and others that LPOD has featured recently,
there is only excellent imaging, whether from a giant telescope, a backyard one or an orbiting camera. I am amazed to see a terrestrial image
of this scale and quality. The dramatic lighting highlights the ejecta from Theophilus, with the smooth impact melt ponds just north of the
crater's rim. Also very conspicuous is a small rille that looks like a twig with branches at the top end. This has been imaged before but it is
more distinctive here.
 |
The rille also crosses a circular rise that George proposes is a
megadome similar to the Valentine Dome. The dome (outlined
in red) is undetectable in the image due to the distractions of
Theophilus' ejecta, but using LRO QuickMap elevations George
found that it is roughly 85 km wide and 300-400 m high. The
existence of the dome may explain the location of the rille. Few
rilles occur in this area, but a rille does cross the Valentine
Dome so this may be a similar feature.
Yesterday's LPOD: Extreme Makeover Tomorrow's LPOD: A Bridge Too Far, an Observation Quite Good COMMENTS?Register, Log in, and join in the comments.
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