Difference between revisions of "May 25, 2005"
| (8 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
=An IR Strip Across a Kipuka= | =An IR Strip Across a Kipuka= | ||
| + | <!-- Start of content --> | ||
<table width="85%" border="0" align="center" cellpadding="6" cellspacing="2"> | <table width="85%" border="0" align="center" cellpadding="6" cellspacing="2"> | ||
<tr> | <tr> | ||
| − | |||
</tr> | </tr> | ||
</table> | </table> | ||
| Line 13: | Line 13: | ||
</table> | </table> | ||
<table width="80%" border="0" align="center" cellpadding="8"> | <table width="80%" border="0" align="center" cellpadding="8"> | ||
| − | <tr><td><div align="center" class="main_sm">Image Credit: [mailto:pjstooke@uwo.ca Phil Stooke]</p> | + | <tr><td><div align="center" class="main_sm"><p>Image Credit: [mailto:pjstooke@uwo.ca Phil Stooke]</p> |
</div></td> | </div></td> | ||
</tr> | </tr> | ||
| Line 21: | Line 21: | ||
<p align="center"><b>An IR Strip Across a Kipuka</b></p> | <p align="center"><b>An IR Strip Across a Kipuka</b></p> | ||
<p align="left">What can you do when the Moon is hidden by clouds? Explore it with Clementine images! This image shows the kipuka (old surface surrounded by younger lavas) north of Menelaus, illustrated in LPOD on May 14. The vertical image strip is a mosaic of eleven Clementine long wavelength infrared (LWIR) images downloaded from NASA's Planetary Image Atlas. The original images are impossible to recognize, all useful details are lost in a sea of noise. But by averaging and subtracting the noise, the moon's surface is revealed. Because this is thermal infrared, warm surfaces (darker or facing the sun) are bright and cool surfaces (brighter or facing away from the sun) are dark. Small craters with dark surroundings are in reality fresh bright-ejecta craters. At the bottom we see the rough ejecta of Menelaus crater, and north of it the kipuka, split by a rille, rising above the surrounding plains. In most areas, these LWIR images are the highest resolution views from Clementine.</p> | <p align="left">What can you do when the Moon is hidden by clouds? Explore it with Clementine images! This image shows the kipuka (old surface surrounded by younger lavas) north of Menelaus, illustrated in LPOD on May 14. The vertical image strip is a mosaic of eleven Clementine long wavelength infrared (LWIR) images downloaded from NASA's Planetary Image Atlas. The original images are impossible to recognize, all useful details are lost in a sea of noise. But by averaging and subtracting the noise, the moon's surface is revealed. Because this is thermal infrared, warm surfaces (darker or facing the sun) are bright and cool surfaces (brighter or facing away from the sun) are dark. Small craters with dark surroundings are in reality fresh bright-ejecta craters. At the bottom we see the rough ejecta of Menelaus crater, and north of it the kipuka, split by a rille, rising above the surrounding plains. In most areas, these LWIR images are the highest resolution views from Clementine.</p> | ||
| − | <blockquote><p align="right">— [mailto:pjstooke@uwo.ca Phil Stooke]</blockquote> | + | <blockquote> |
| − | <p align="left" | + | <p align="right">— [mailto:pjstooke@uwo.ca Phil Stooke]</p></blockquote> |
| + | <p align="left"><b>Technical Details:</b><br> | ||
All processing done in Photoshop. Each frame is filtered to remove noise. The frames are stacked and averaged, and the average frame is then subtracted from each individual image. The result is very bland, but with contrast enhancement and more noise removal this is the result. In the mosaic, overlapping areas are also merged to further reduce noise.</p> | All processing done in Photoshop. Each frame is filtered to remove noise. The frames are stacked and averaged, and the average frame is then subtracted from each individual image. The result is very bland, but with contrast enhancement and more noise removal this is the result. In the mosaic, overlapping areas are also merged to further reduce noise.</p> | ||
<p><b>Related Links:</b><br> | <p><b>Related Links:</b><br> | ||
| − | [http://publish.uwo.ca/~pjstooke/ Phil Stooke's Website] | + | [http://publish.uwo.ca/~pjstooke/ Phil Stooke's Website]</p> |
| − | <p | + | <p><b>Yesterday's LPOD:</b> [[May 24, 2005|Grand Central Station]] </p> |
| + | <p><b>Tomorrow's LPOD:</b> [[May 26, 2005|A New Kind of DHC]] </p> | ||
</tr> | </tr> | ||
</table> | </table> | ||
| Line 37: | Line 39: | ||
<p align="center" class="main_titles"><b>Author & Editor:</b><br> | <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> | ||
| − | < | + | <!-- Cleanup of credits --> |
| − | + | <!-- Cleanup of credits --> | |
| − | < | + | <!-- Cleanup of credits --> |
| − | + | <!-- Cleanup of credits --> | |
| − | + | <!-- Cleanup of credits --> | |
| − | < | + | <!-- Cleanup of credits --> |
| − | < | + | <!-- Cleanup of credits --> |
| − | + | <!-- Cleanup of credits --> | |
| − | < | + | <!-- Cleanup of credits --> |
| − | + | <!-- Cleanup of credits --> | |
</td></tr> | </td></tr> | ||
</table> | </table> | ||
<p> </p> | <p> </p> | ||
| − | ---- | + | <!-- End of content --> |
| − | + | {{wiki/ArticleFooter}} | |
| − | |||
Latest revision as of 15:16, 15 March 2015
An IR Strip Across a Kipuka
|
Image Credit: Phil Stooke |
|
An IR Strip Across a Kipuka What can you do when the Moon is hidden by clouds? Explore it with Clementine images! This image shows the kipuka (old surface surrounded by younger lavas) north of Menelaus, illustrated in LPOD on May 14. The vertical image strip is a mosaic of eleven Clementine long wavelength infrared (LWIR) images downloaded from NASA's Planetary Image Atlas. The original images are impossible to recognize, all useful details are lost in a sea of noise. But by averaging and subtracting the noise, the moon's surface is revealed. Because this is thermal infrared, warm surfaces (darker or facing the sun) are bright and cool surfaces (brighter or facing away from the sun) are dark. Small craters with dark surroundings are in reality fresh bright-ejecta craters. At the bottom we see the rough ejecta of Menelaus crater, and north of it the kipuka, split by a rille, rising above the surrounding plains. In most areas, these LWIR images are the highest resolution views from Clementine. Technical Details: Related Links: Yesterday's LPOD: Grand Central Station Tomorrow's LPOD: A New Kind of DHC |
|
Author & Editor: |
COMMENTS?
Register, Log in, and join in the comments.
