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Post by earthorbit on Jul 14, 2005 10:47:25 GMT -4
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Post by martin on Jul 14, 2005 11:32:09 GMT -4
 Same mountain, same mission!!! I know very little on photography, but even I can can make photographs with difference like this... Martin |
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Bob B.
Bob the Excel Guru?
Posts: 3,072
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Post by Bob B. on Jul 14, 2005 11:41:32 GMT -4
The Sun does not need to move very far to make dramatic differences in lighting conditions. A wall for instance can go from shaded to lighted, and vice versa, in a matter of seconds as the Sun passes through the plane of the wall. Some of the Moon landings lasted for days.
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Post by Data Cable on Jul 14, 2005 12:01:11 GMT -4
Different EVA's!!!  The first image is AS15-87-11835, taken at approximately 147:27, during EVA-2. The second is AS15-86-11603, taken at approximately 125:45, at the end of EVA-1. In the 21.7 hours between these two photos, the moon has rotated roughly 11 degrees (the equivalent of about 44 minutes of rotation on Earth), enough for the barely-in-shadow face of Mt. Hadley to become fully illuminated. |
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Post by JayUtah on Jul 14, 2005 12:04:01 GMT -4
I see this phenomenon every day. It's not anomalous to anyone who lives near mountains. The sun need move only a few degrees to reveal a mostly planar mountainside that was previously in shade.
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Post by PhantomWolf on Jul 14, 2005 22:13:52 GMT -4
heh, I don't know why people don't check the timings of photos before making claims, that the sun had mved in the sky was my first thought. The second was to note that the lunar surface is slightly brighter in the first and so there might be more exposure of the film as well, though that wouldn't be as significant as the sun angle change in near enough to 22 hours.
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Post by dwight on Jul 15, 2005 2:08:12 GMT -4
Also, the first pic looks over-exposed to me.
Dwight
RTL Transmission Control
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Same mountain, same mission!!!
