description Kepler-47b Overview
Kepler-47b is a transiting circumbinary exoplanet located in the Kepler-47 system, which was announced in 2012. It was part of the first system discovered to host multiple planets orbiting a binary star pair. The planet completes an orbit around the two host stars approximately every 49 days. It is slightly larger than Uranus, placing it in the Neptune-class category of exoplanets.
help Kepler-47b FAQ
What makes Kepler-47b unique compared to other exoplanets?
It is part of the first confirmed transiting circumbinary multi-planet system, meaning it orbits two stars instead of one. This groundbreaking discovery was announced in 2012 using data from NASA's Kepler space observatory.
How long does it take for Kepler-47b to orbit its host stars?
The planet completes a full orbit around its binary host pair roughly every 49 days. This is remarkably fast considering it circles a pair of stars locked in their own 7.45-day orbit.
Is Kepler-47b located in the habitable zone?
No, Kepler-47b is the inner planet of the system and sits too close to the host stars to support liquid water. It is likely a scorching environment, making it inhospitable for life as we know it.
How was Kepler-47b originally detected by astronomers?
Astronomers detected the planet using the transit method, which measures the tiny, periodic dips in light as the planet passes in front of its two parent stars. It was officially confirmed in 2012 alongside the discovery of its outer companion, Kepler-47c.
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