Quote:
Originally Posted by atomicpaul
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Yes, what I am trying to say is "close" does not necessarily mean "good picture possible". There are a lot of reasons why a clear image is difficult with a moving object like an asteroid or NEO.
Ever tried to take a photo of the ISS as it passes overhead? Different than a picture from orbit.
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If I know my optics and I do not, I think the light from the Sun can obscure an object as it transits into and out from behind the
disk.
Asteroids don't have that problem even at a similar distance from Earth.