May 23, 2007, HiRISE release |
May 23, 2007, HiRISE release |
Guest_AlexBlackwell_* |
May 23 2007, 04:01 PM
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May 23 2007, 06:39 PM
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
I wonder what IR will show us, especially at night. I don't think we'll be able to look down the hole directly, unless MRO's orbit is modified, right? Maybe we need to wait for a nice, strong dust storm to kick up the tau, so that more light is sent down the hole from all around. Pretty amazing that it is pitch black!
I'm sure it's possible with to make an estimate of the minimum size and depth of the cavern based on that. Maybe we'll get lucky and something interesting will show up on IR, like the extent of the roof over the cavern. Do either of the radars on Mars have the resolution to check this out? I don't quite understand why the incidence angle != angle of the sun above the horizon; only thing I can think of is that we're looking at a slope. Anyone locate a wider context shot of that location? I couldn't see any lava-tube features, but the whole image might be one. EDIT: Looks like this is Jeanne: http://themis-data.asu.edu/img/browse/V183...&stretch=S2 Took me a bit to convince myself it's the same location. -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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