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A Comparison of Mass and Radius for Discovered Planets

A Comparison of Mass and Radius for Discovered Planets

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Emily Lakdawalla and Loren A. Roberts for The Planetary Society based on data from exoplanets.org

A Comparison of Mass and Radius for Discovered Planets
This graph displays all exoplanets with measured diameters and masses. Rocky planets form a tight line (lower left), but super-Earths/mini-Neptunes have widely varying atmospheres and densities. At Jupiter’s size, increasing mass no longer increases the diameter of a planet (upper right). Most of Kepler’s discoveries would be in the super-Earth/mini-Neptune region, but few of them have measured masses, so they do not appear here. This graph was originally published in "The Skies of Mini-Neptunes," an article by Hannah Wakeford for the March 2019 issue of The Planetary Report.

This work is licensed under a Creative Commons Attribution 3.0 Unported License. For uses not allowed by that license, contact us to request publication permission from the copyright holder

Original image data dated on or about March 1, 2019

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