Difference between revisions of "October 3, 2024"

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=Ho Hum, Another Earthrise=
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Originally published May 11, 2014
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Originally published May 8, 2014
 
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<em>image by [mailto:hf1@nyu.edu Howard Fink], New York</em><br />
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<em>image from [http://www.lroc.asu.edu/news/index.php?/archives/875-Earthrise!.html#extended NASA/GSFC/Arizona State University]</em><br />
 
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This 1940 <em>Popular Mechanics</em> article tells of story of a little known - to me until Howard brought it to my attention - large lunar model. Ed Krupp, the director of Griffith Observatory recently provided me more information about this large model. The Moon model was in the Observatory's South Gallery, which as recent visitors may know, still exists and currently holds Gravity's Stairway.The model was removed and destroyed about 1965, and replaced, first with a 6 foot Rand McNally Earth-facing hemisphere, and later with a similar sized rotating globe of the entire surface. That 38 year old globe is still on display near an Apollo 14 sample. The main creator of the model was the extraordinary, but now mostly forgotten, artist [http://en.wikipedia.org/wiki/Roger_Hayward Roger Hayward]. The December 2007 issue of <em>Sky &amp; Telescope</em> has a great article on Hayward - who long made the distinctive drawings in <em>Scientific American</em>'s Amateur Scientist column and invented the Schmidt-Cassagrain telescope. I thank Ed Krupp for this information, and congratulate him for his [http://www.dailynews.com/science/20140509/griffith-observatory-and-its-director-celebrating-milestones 40th anniversary] as director of the fabulous Griffith Observatory.<br />
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The Kaguya spacecraft included a high definition TV camera specifically to capture [http://www.lpod.org/?p=1517 Earthrise] and Earthset at the lunar poles. The text for the recent LROC [http://www.lroc.asu.edu/news/index.php?/categories/2-Featured-Image Featured Image] shown here mentions that the LRO spacecraft has available a dozen chances to capture Earthrises each day but in general is too busy acquiring images of the lunar surface to tilt the camera (and spacecraft) to see them. Perhaps the mission has completed enough polar mapping now that it can take a tourist picture for the folks back home. As the former director of the [http://earth.jsc.nasa.gov Space Shuttle Earth Observations Project] at Johnson Space Center I am always interested in seeing the Earth from space, but I must admit that in this image the Moon is more interesting. The large, flat-floored crater near the center of the scene is perhaps the hardest crater name to spell and pronounce: [https://the-moon.us/wiki/Rozhdestvenskiy Rozhdestvenskiy], with younger [https://the-moon.us/wiki/Plaskett Plaskett] to the left. My first reaction on seeing this image was to brighten up the Moon to make a more spectacular view, but the LROC article accompanying the image states that the Moon is deliberately shown as a dark grey to represent its true faintness compared to Earth. I wonder, however, if the contrast is as flat as depicted here? I'd like to be in lunar orbit some time to check.<br />
 
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<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br />
 
<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br />
 
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<strong>Related Links</strong><br />
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<em>[[21st Century Atlas of the Moon|21st Century Atlas]]</em> chart L1.<br />
 
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<p><b>Yesterday's LPOD:</b> [[October 2, 2024|Bright Rim]] </p>
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<p><b>Yesterday's LPOD:</b> [[October 2, 2024|Rarely Seen Genius]] </p>
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<p><b>Tomorrow's LPOD:</b> [[October 4, 2024|Slip-Sliding Away]] </p>
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<p><b>Tomorrow's LPOD:</b> [[October 4, 2024|Would You Like a Second Helping?]] </p>
 
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Latest revision as of 02:08, 3 October 2024

Ho Hum, Another Earthrise

Originally published May 8, 2014 LPOD-May8-14.jpg
image from NASA/GSFC/Arizona State University

The Kaguya spacecraft included a high definition TV camera specifically to capture Earthrise and Earthset at the lunar poles. The text for the recent LROC Featured Image shown here mentions that the LRO spacecraft has available a dozen chances to capture Earthrises each day but in general is too busy acquiring images of the lunar surface to tilt the camera (and spacecraft) to see them. Perhaps the mission has completed enough polar mapping now that it can take a tourist picture for the folks back home. As the former director of the Space Shuttle Earth Observations Project at Johnson Space Center I am always interested in seeing the Earth from space, but I must admit that in this image the Moon is more interesting. The large, flat-floored crater near the center of the scene is perhaps the hardest crater name to spell and pronounce: Rozhdestvenskiy, with younger Plaskett to the left. My first reaction on seeing this image was to brighten up the Moon to make a more spectacular view, but the LROC article accompanying the image states that the Moon is deliberately shown as a dark grey to represent its true faintness compared to Earth. I wonder, however, if the contrast is as flat as depicted here? I'd like to be in lunar orbit some time to check.

Chuck Wood

Related Links
21st Century Atlas chart L1.

Yesterday's LPOD: Rarely Seen Genius

Tomorrow's LPOD: Would You Like a Second Helping?

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