Difference between revisions of "October 18, 2013"
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=Dome or Kipuka?= | =Dome or Kipuka?= | ||
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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 /> | ||
| − | With excellent technology and developing skills, amateur astronomers acquire increasingly stunning images of the Moon. And as more | + | With excellent technology and developing skills, amateur astronomers acquire increasingly stunning images of the Moon. And as more |
| − | and more use the altimetry tool in the LRO QuickMap the things seen and investigated on the Moon become more sophisticated. In this | + | and more use the altimetry tool in the LRO QuickMap the things seen and investigated on the Moon become more sophisticated. In this |
| − | example, George noticed a possible elevated area east of Copernicus near Stadius. There is a detectable change in slope bounding a | + | example, George noticed a possible elevated area east of Copernicus near Stadius. There is a detectable change in slope bounding a |
| − | roughly circular patch outlined in red. To investigate this apparent rise George made topographic traverses across the circled area and | + | roughly circular patch outlined in red. To investigate this apparent rise George made topographic traverses across the circled area and |
| − | found that it is 80-100 m higher than the surroundings. There are two possible interpretations for isolated elevated mare areas - they | + | found that it is 80-100 m higher than the surroundings. There are two possible interpretations for isolated elevated mare areas - they |
| − | could be volcanic domes or older mare materials that happen to be elevated - such older relicts are called by the Hawaiian word | + | could be volcanic domes or older mare materials that happen to be elevated - such older relicts are called by the Hawaiian word |
| − | kipukas. As a dome, or because this is so large, a mega-dome, the surface should be the same age as the surrounding lava; as a | + | kipukas. As a dome, or because this is so large, a mega-dome, the surface should be the same age as the surrounding lava; as a |
| − | kipuka it would be older. This elevated area near Stadius has more pits than the surroundings, but they are mostly Copernicus | + | kipuka it would be older. This elevated area near Stadius has more pits than the surroundings, but they are mostly Copernicus |
| − | secondaries and could just be a chance cluster, so the elevated area may be the same lavas as the surroundings. The rille that crosses | + | secondaries and could just be a chance cluster, so the elevated area may be the same lavas as the surroundings. The rille that crosses |
| − | the rise is also evidence that a volcanic vent occured in this area. The origin of this elevated area is not certain but George's image and | + | the rise is also evidence that a volcanic vent occured in this area. The origin of this elevated area is not certain but George's image and |
| − | investigation revealed it. | + | investigation revealed it. |
<br /> | <br /> | ||
| − | <em>[mailto:tychocrater@yahoo.com | + | <br /> |
| + | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | ||
<br /> | <br /> | ||
<strong>Technical Details</strong><br /> | <strong>Technical Details</strong><br /> | ||
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<br /> | <br /> | ||
<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
| − | <em>[ | + | <em>[[21st Century Atlas of the Moon|21st Century Atlas]]</em> chart 17.<br /> |
| − | George's [http://www.lunar-captures.com | + | George's [http://www.lunar-captures.com website]<br /> |
<br /> | <br /> | ||
| + | <p><b>Yesterday's LPOD:</b> [[October 17, 2013|Big Cut Dome]] </p> | ||
| + | <p><b>Tomorrow's LPOD:</b> [[October 19, 2013|A Touch of Reality]] </p> | ||
<hr /> | <hr /> | ||
| + | {{wiki/ArticleFooter}} | ||
Latest revision as of 08:35, 28 October 2018
Dome or Kipuka?
image by George Tarsoudis, Greece
With excellent technology and developing skills, amateur astronomers acquire increasingly stunning images of the Moon. And as more
and more use the altimetry tool in the LRO QuickMap the things seen and investigated on the Moon become more sophisticated. In this
example, George noticed a possible elevated area east of Copernicus near Stadius. There is a detectable change in slope bounding a
roughly circular patch outlined in red. To investigate this apparent rise George made topographic traverses across the circled area and
found that it is 80-100 m higher than the surroundings. There are two possible interpretations for isolated elevated mare areas - they
could be volcanic domes or older mare materials that happen to be elevated - such older relicts are called by the Hawaiian word
kipukas. As a dome, or because this is so large, a mega-dome, the surface should be the same age as the surrounding lava; as a
kipuka it would be older. This elevated area near Stadius has more pits than the surroundings, but they are mostly Copernicus
secondaries and could just be a chance cluster, so the elevated area may be the same lavas as the surroundings. The rille that crosses
the rise is also evidence that a volcanic vent occured in this area. The origin of this elevated area is not certain but George's image and
investigation revealed it.
Chuck Wood
Technical Details
Oct 13, 2013. SkyWatcher 14 inch @f/4.5, camera QHY5L-II, filter Red, barlow 3X.
Related Links
21st Century Atlas chart 17.
George's website
Yesterday's LPOD: Big Cut Dome
Tomorrow's LPOD: A Touch of Reality
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