ERIS
Eris
Eris, minor-planet designation 136199 Eris, is the most massive known dwarf planet in the Solar System and the ninth most massive body known to orbit the Sun directly. It is estimated to be 2326 km in diameter, and 27% more massive than Pluto, or about 0.27% of the Earth's mass.The above text is a snippet from Wikipedia: Eris (dwarf planet)
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