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Kepler-78b - Exoplanet
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Kepler-78b

description Kepler-78b Overview

Rocky exoplanet announced in 2013 with a density and composition similar to Earth's, the first exoplanet confirmed to be composed of iron and rock; it orbits its star in just ~8.5 hours.

insights Why this score

Kepler-78b ranks #41 of 269 in the Exoplanet ranking, behind WASP-107b, ahead of WASP-17b.

help Kepler-78b FAQ

How good is Kepler-78b?
Kepler-78b scores 7.91/10 (Good) on Lunoo, making it a well-rated option in the Exoplanet category.
What are the best alternatives to Kepler-78b?
See our alternatives page for Kepler-78b for a ranked list with scores. Top alternatives include: Kepler-10b, 55 Cancri e, CoRoT-7b.
How does Kepler-78b compare to Kepler-10b?
See our detailed comparison of Kepler-78b vs Kepler-10b with scores, features, and an AI-powered verdict.
Is Kepler-78b worth it in 2026?
With a score of 7.91/10, Kepler-78b is a solid option in Exoplanet. See all Exoplanet ranked.

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