Labels:text | screenshot | font OCR: PLUTO SIZE: 1420 miles in diameter. About 1/5 the size of Earth. DISTANCE from Sun: 2,750 million miles MOONS: 1 The NINTH Planet NICKNAME: The Ice Twins AND Activity = Pluto has a moon, called Charon, that is just a little. smaller than Pluto itself. These two Ice Twins revolve around each other. From Pluto, the Sun looks like nothing more than a very bright star in the night sky.