Reflecting Telescope
Moon Physics Question with a Reflecting Telescope?
About how close to each other are two objects on the Moon that can just barely be resolved by a 5.12-m (202-in.)-diameter reflecting telescope? (Use a wavelength of 516 nm.)
use the Rayleigh’s criterion. a delta0 = 1.22 x wavelenght.
Delta0 = distance of the two objects / distance of the moon from the earth
Distance of moon = 384403 km
diameter of telescope = a = 5.12 m
wavelength = 516×10^-9 m
distance of two objects = delta x = ?
delta x = {(1.22)(wavelength)(distance of moon)} / diameter of telescope
47.26 m = {(1.22)(516×10^-9m)(3.84×10^8m)} / 5.12 m
I hope that helped
Venus 30/01/09 filmed through web cam and 6″ Reflecting telescope.
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