What is the ratio of the angular resolution limit of Keck to the angular resolution limit of HST? (Assume they are both observing at the same wavelength.) [Compute the relevant ratio Keck/HST, express as a decimal, and enter below.] HST orbits at an altitude of 559 km above the Earth's surface. Assume its orbit is circular. Compute its orbital period in hours. Compute its orbital speed (in km/s).

What is the ratio of the angular resolution limit of Keck to the angular resolution limit of HST? (Assume they are both observing at the same wavelength.) [Compute the relevant ratio Keck/HST, express as a decimal, and enter below.] HST orbits at an altitude of 559 km above the Earth's surface. Assume its orbit is circular. Compute its orbital period in hours. Compute its orbital speed (in km/s).