manaspant4 manaspant4 16-05-2024 Physics Answered . Kapteyn's Star is insanely old ( 1 1 billion years ) . It has a temperature of 3 5 7 0 and has a power output that is 1 . 2 % that of the Sun ( 0 . 0 1 2 S u n ) . How much entropy has this star generated over its long life?