Answer to Question #201534 in Astronomy | Astrophysics for Majedali

Question

Telescopes are an essential tool for astronomers to study the universe. You plan to build your

own telescope that can resolve the Great Red Spot on the surface of Jupiter at a wavelength of

600 nm. The farthest distance between the Earth and Jupiter is 968 × 106 km and the Great Red

Spot has currently a diameter of 16,500 km.

(a) Use the Rayleigh criterion to determine the diameter of the lens’ aperture of your telescope

that is needed to resolve the Great Red Spot on Jupiter.

Impacts have formed many craters on the Moon’s surface. You would like to study some of the

craters with your new telescope. The distance between Moon and Earth is 384,400 km.

(b) What is the smallest possible size of the craters that your telescope can resolve?

Answer 1

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