α = 4GM/((c^2)b), where b is the impact parameter[0].
Apparently human visual acuity is 0.3 milli-radians, so if b = 1 meter, that's approximately "the moon" (in at most a 1 meter radius volume)…
…assuming I didn't mix up my units in this formula I never used before, though it feels about right given the Schwarzschild radius of the Earth is ~ centimetres.
[0] never heard of this before just now; I think it's the shortest distance between the central point and the path the light would have taken if it hadn't been deflected?
α = 4GM/((c^2)b), where b is the impact parameter[0].
Apparently human visual acuity is 0.3 milli-radians, so if b = 1 meter, that's approximately "the moon" (in at most a 1 meter radius volume)…
…assuming I didn't mix up my units in this formula I never used before, though it feels about right given the Schwarzschild radius of the Earth is ~ centimetres.
[0] never heard of this before just now; I think it's the shortest distance between the central point and the path the light would have taken if it hadn't been deflected?