Contact: Christine Pulliam
Harvard-Smithsonian Center for Astrophysics
Caption: This diagram illustrates the tight orbit of Kepler-78b, which orbits its star every 8.5 hours at a distance of less than a million miles. It is only 2.7 stellar radii from the center of the star, or 1.7 stellar radii from the star's surface.
Credit: David A. Aguilar (CfA)
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