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A planet is orbiting a nearby star in a circular, face-on (no inclination) orbit. The planets distance from the star is 15 AU, and the star is 202 light years from Earth. b) What size telescope would be required in order to resolve the star from the planet, assuming we could work at the diffraction limit at a wavelength of 7 μm? Answer in metresPlease help!

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if θ is the angular seperation between plat and star , tan θ-0- 1.174e -006 rad 202ly (when θ<< l , tan θ~ θ) The Rayleigh criterion for the minimum resolvable angle for a telescope is θ=1.22 -6 λ-wave length of light source-7.0 × I Ū。m D-diameter of the telescope after substituting the values in the relation, D = 1 .22 =| 7.273 m

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