a) PLANETS: A spectrograph allows the measurement of the radial velocity of a star to an ac- curacy of 10 m/s. For a star like the Sun, a planet with an orbital period of 1 year and and an edge-on orbit with negligible eccentricity, what planet mass will produce a maximum radial velocity comparable to the measurement error? Give your answer in Jupiter masses. [5] b) PLANETS: What percentage change in flux from the star would be observed during transit of this planet. State any assumptions you have made. [8]