Difference between revisions of "June 21, 2004"
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=Re-Projecting the Moon= | =Re-Projecting the Moon= | ||
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− | <td><div align="center | + | <td><div align="center"><p>Image Credit: [mailto:j-p.metsavainio@myorigo.com J-P Metsavainio]</p></div></td> |
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<p class="story" align="center"><b>Re-Projecting the Moon</b></p> | <p class="story" align="center"><b>Re-Projecting the Moon</b></p> | ||
− | <p class="story" align="left">Because the Moon is a sphere all features away from the sub-Earth point are seen with distortion that becomes progressively more extreme as the limb is approached. Circular craters look more and more elliptical until, at the limb they are seen in profile. This perspective effect makes studies of the limb difficult, and although Lunar Orbiter 4 and Clementine have provided overhead views of nearly the entire Moon, sometimes telescopic images can reveal features not seen on the existing space images. Now Finnish lunar observer J-P Metsavainio has used the power of commercial software to undistort limb regions. I hope others will experiment with J-P's technique. In addition to exploring the limbs, you can center images over Imbrium to try your own mapping of that basin's rings. Or center on Crisium to see its real shape, or on Nectaris to appreciate its extensive system of radial features, or on Schiller to convince yourself of the reality of that multi-ring basin. There is new life in your old lunar images! | + | <p class="story" align="left">Because the Moon is a sphere all features away from the sub-Earth point are seen with distortion that becomes progressively more extreme as the limb is approached. Circular craters look more and more elliptical until, at the limb they are seen in profile. This perspective effect makes studies of the limb difficult, and although Lunar Orbiter 4 and Clementine have provided overhead views of nearly the entire Moon, sometimes telescopic images can reveal features not seen on the existing space images. Now Finnish lunar observer J-P Metsavainio has used the power of commercial software to undistort limb regions. I hope others will experiment with J-P's technique. In addition to exploring the limbs, you can center images over Imbrium to try your own mapping of that basin's rings. Or center on Crisium to see its real shape, or on Nectaris to appreciate its extensive system of radial features, or on Schiller to convince yourself of the reality of that multi-ring basin. There is new life in your old lunar images!</p> |
<p><b>Technical Details:</b><br> | <p><b>Technical Details:</b><br> | ||
The original image was acquired Feb 28, 2004 using a Meade LX200 GPS 12" telescope and a Logitech 4000pro WebCam at | The original image was acquired Feb 28, 2004 using a Meade LX200 GPS 12" telescope and a Logitech 4000pro WebCam at | ||
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[http://www.schicklerart.com/auto_exh/Astronomy%20Rare%20Books?id=9630758&from=1 Rectified Lunar Atlas] | [http://www.schicklerart.com/auto_exh/Astronomy%20Rare%20Books?id=9630758&from=1 Rectified Lunar Atlas] | ||
</p> | </p> | ||
− | <p | + | <p><b>Yesterday's LPOD:</b> [[June 20, 2004|Discover the Moon]] </p> |
+ | <p><b>Tomorrow's LPOD:</b> [[June 22, 2004|A Fundamental Relation]] </p> | ||
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<td><p align="center" class="main_titles"><b>Author & Editor:</b><br> | <td><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> | ||
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Latest revision as of 19:20, 7 February 2015
Re-Projecting the Moon
Image Credit: J-P Metsavainio |
Re-Projecting the Moon Because the Moon is a sphere all features away from the sub-Earth point are seen with distortion that becomes progressively more extreme as the limb is approached. Circular craters look more and more elliptical until, at the limb they are seen in profile. This perspective effect makes studies of the limb difficult, and although Lunar Orbiter 4 and Clementine have provided overhead views of nearly the entire Moon, sometimes telescopic images can reveal features not seen on the existing space images. Now Finnish lunar observer J-P Metsavainio has used the power of commercial software to undistort limb regions. I hope others will experiment with J-P's technique. In addition to exploring the limbs, you can center images over Imbrium to try your own mapping of that basin's rings. Or center on Crisium to see its real shape, or on Nectaris to appreciate its extensive system of radial features, or on Schiller to convince yourself of the reality of that multi-ring basin. There is new life in your old lunar images! Technical Details: Related Links: Yesterday's LPOD: Discover the Moon Tomorrow's LPOD: A Fundamental Relation |
Author & Editor: |
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