Venera Images, VENERA 13 fully calibrated image |
Venera Images, VENERA 13 fully calibrated image |
Sep 14 2005, 09:26 PM
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#1
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Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
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Oct 4 2005, 08:50 PM
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#2
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Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
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Oct 4 2005, 09:03 PM
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#3
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
QUOTE (vikingmars @ Oct 4 2005, 03:50 PM) Well ljk4-1... I don't know about the "Venusquake", but the lander movement is real. See it herewith enlarged 400% (a shift of 2 pixels vertically between Clear pan 2 and Clear pan 5). I am not questioning the veracity of the movement, but I do have these two questions: 1. What made Venera 13 move, especially in such a short time period? 2. Why hasn't this movement ever been brought to attention or noticed before? Or did I just miss something in the literature? Always a treat to find something new, even in images over two decades old - which reminds me to say, it's about time we put some more landers on Venus! -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Oct 4 2005, 10:21 PM
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#4
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Interplanetary Dumpster Diver Group: Admin Posts: 4405 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
QUOTE (ljk4-1 @ Oct 4 2005, 09:03 PM) I am not questioning the veracity of the movement, but I do have these two questions: 1. What made Venera 13 move, especially in such a short time period? 2. Why hasn't this movement ever been brought to attention or noticed before? Or did I just miss something in the literature? Always a treat to find something new, even in images over two decades old - which reminds me to say, it's about time we put some more landers on Venus! It also may have shifted as it settled after landing. I don't think expansion and a slight change in the track of the scanning photometer can be ruled out. -------------------- |
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Oct 4 2005, 10:41 PM
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#5
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
QUOTE (tedstryk @ Oct 4 2005, 03:21 PM) It also may have shifted as it settled after landing. I don't think expansion and a slight change in the track of the scanning photometer can be ruled out. My bet is that something inside the spacecraft changed. Also, can we exclude the possibility of a 2-pixel shift due to some un-venus-related processing? I can think of scads of ways that postprocessing would lead to such a shift. If something did take place on Venus, note that these landers were very heavy, and moreover, in comparison to the local environment, also very cold -- they may have caused some contraction of materials in immediate contact with them. |
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Oct 4 2005, 10:53 PM
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#6
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
QUOTE (JRehling @ Oct 4 2005, 11:41 PM) Well, the scanning mechanism moved, the filters moved, the whole shooting match heated up... ...it's surely a tribute to the engineers that so few critical dimensions altered! -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Oct 5 2005, 04:04 PM
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#7
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Senior Member Group: Members Posts: 1636 Joined: 9-May 05 From: Lima, Peru Member No.: 385 |
QUOTE (Bob Shaw @ Oct 4 2005, 05:53 PM) Well, the scanning mechanism moved, the filters moved, the whole shooting match heated up... ...it's surely a tribute to the engineers that so few critical dimensions altered! The Venus's temperature is like to the kitchen oven. I am afraid that the Venera spaceship might still be in good shape....if it is made of kitchen oven's technology... Rodolfo |
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