Quote:
Originally Posted by ravens_cry
Which would be easier, seen another earth sized exo-planet directly, or seen foortprints on the moon? I seriously want to know.
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Using Hypo' Testings numbers:
resolving angle= width/distance
goes to
Distance= width/ resolving angle
D= 1.2x10^6 m / 3x10^-10
D= .4x10^16 m= about .4 light years
so an earth sized exoplanet would be harder to resolve if it were further away then .4 light-years.