Use the inverse square law to estimate how the brightness of theSun would change if you moved from Earth at 1 AU to Saturn'slocation at 10 AU (i.e., give a fraction or percentage, notmagnitude). Then, the brightest known star is R136a1 with anabsolute magnitude of -12.5, explain why you cannot make a precisedetermination of its brightness as seen from Earth without moreinformation
