Apollo Sites from LRO |
Apollo Sites from LRO |
Jul 17 2009, 02:52 PM
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
Thought this deserved a new thread- we can't talk about EVERY LRO target in the one thread
I made a mistake in this one - I didn't include the thruster plume guards. My MER/MPF simulation for HiRISE seemed to come out about right - so fingers crossed that this will be there or there abouts as well. Still in a comissioning phase, something of a slant angle - I'd expect approx 1.5m/pixel if it's at the 120km figure mentioned earlier. |
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Apr 8 2017, 11:57 PM
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Senior Member Group: Members Posts: 2089 Joined: 13-February 10 From: Ontario Member No.: 5221 |
I read somewhere that the colours would gradually be lost, due to the radiation, and they'd have lost their patterns and turned white by now? I suppose that's more of a material chemistry question; the only way to find out for sure is a followup landing...
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Apr 9 2017, 09:13 PM
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Junior Member Group: Members Posts: 31 Joined: 24-February 17 From: California Member No.: 8127 |
I read somewhere that the colours would gradually be lost, due to the radiation, and they'd have lost their patterns and turned white by now? I suppose that's more of a material chemistry question; the only way to find out for sure is a followup landing... All of the flags (except for Apollo 11 which was blown down on LM liftoff) are casting very dark shadows. One might assume that even if most of the colors have faded away, the flags could still cast dark shadows with mid morning or mid afternoon sunlight at the landing sites. Yet interestingly, all of the flags cast very dark shadows even with the sun very low above the east or west horizon in which the sunlight is striking the flags as face-on as possible. This seems to imply that the flags are still quite opaque. For example, the A12 flag's shadow at sunrise or sunset is noticeably darker than the high gain antenna shadow, yet not as dark as the LM descent stage shadow. |
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