The Bruce Murray Space Image Library
Filed under explaining science, trans-neptunian objects, Pluto, dwarf planets beyond Neptune
With an orbital eccentricity of 0.24, Pluto is almost twice as far from the Sun at aphelion than at perihelion. Its seasons are aligned with this elliptical orbit such that perihelion occurs at the transition from northern winter to spring.
Emily Lakdawalla after Candy Hansen
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