Venera Images, VENERA 13 fully calibrated image |
Venera Images, VENERA 13 fully calibrated image |
Sep 14 2005, 09:26 PM
Post
#1
|
|
Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
|
|
|
Oct 4 2005, 08:50 PM
Post
#2
|
|
Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
|
|
|
Oct 4 2005, 09:03 PM
Post
#3
|
|
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 |
|
|
Oct 4 2005, 10:21 PM
Post
#4
|
|
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. -------------------- |
|
|
Oct 4 2005, 10:41 PM
Post
#5
|
|
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. |
|
|
Lo-Fi Version | Time is now: 31st October 2024 - 10:47 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |