Orbital distances and relative sizes of planets

Orbital distances and relative sizes of planets

chart comparing sizes of planets

An illustration of the orbital distances and relative sizes of the four innermost planets known to orbit the star 55 Cancri A (bottom) in comparison with planets in our own inner solar system (top). Both Jupiter and the Jupiter-mass planet 55 Cancri "d" are outside this picture, orbiting their host star with a distance of nearly 5 astronomical units (AU), where one AU is equal to the average distance between the Earth and the sun.

Image: Center for Exoplanets and Habitable Worlds
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