One of the advantages of operating a telescope above the earth’s atmosphere is that it can deliver diffraction limited images. the hubble space telescope, which has a mirror with a diameter of 96 inches, is used to observe a star system. we are interested in seeing if the star has a planet so we are looking in the red around . will the possible planet be resolved if it really exists and separation is 0.2 microrads from its parent star? also, why would we be looking for a planet in red light? would you recommend a different wavelength? if we can’t see the possible planet, how big of a telescope would be needed? the new webb space telescope will have a mirror with an 8 m diameter. is this enough?