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Caption: Pluto and its satellite, Charon, have a similar size and mass and the two bodies revolve around each other, always presenting the same side to each other. The average distance between Pluto and Charon is 19,600 km (one-and-a-half times the diameter of Earth).
Credit: Album / Universal Images Group
Image size: 2193 × 3795 px | 23.8 MB
Print size: 18.6 × 32.1 cm | 863.4 × 1494.1 in (300 dpi)