为什么美国能看到我们自己看不到吗？岂不是卫星探测还差很远！唉
angular resolution....
sinθ = 1.22λ/D
where
θ is the angular resolution,
λ is the wavelength of light,
and D is the diameter of the lens' aperture.
in the case of yellow light with a wavelength of 580 nm, for a resolution of 0.1 arc second, we need D = 1.2 m
where
θ is the angular resolution,
λ is the wavelength of light,
and D is the diameter of the lens' aperture.
in the case of yellow light with a wavelength of 580 nm, for a resolution of 0.1 arc second, we need D = 1.2 m
Huasing Association 1999 - 2013