Kepler-47
Sign in to saveKepler-47 is a binary star system in the constellation Cygnus located about away from Earth. The stars have three exoplanets, all of which orbit both stars at the same time, making this a circumbinary system. The first two planets announced are designated Kepler-47b and Kepler-47c, and the third, later discovery is Kepler-47d. Kepler-47 is the first circumbinary multi-planet system discovered by the Kepler mission. The outermost of the planets is a gas giant orbiting within the habitable zone of the stars. Because most larger stars (the size of the sun or greater) are binary, the discovery tha
Article
8 sectionsContents
- Nomenclature and history
- Stellar characteristics
- Planetary system
- Kepler-47b
- Kepler-47c
- Kepler-47d
- See also
- References
Kepler-47 is a binary star system in the constellation Cygnus located about away from Earth. The stars have three exoplanets, all of which orbit both stars at the same time, making this a circumbinary system. The first two planets announced are designated Kepler-47b and Kepler-47c, and the third, later discovery is Kepler-47d. Kepler-47 is the first circumbinary multi-planet system discovered by the Kepler mission. The outermost of the planets is a gas giant orbiting within the habitable zone of the stars. Because most larger stars (the size of the sun or greater) are binary, the discovery that multi-planet systems can form in such a system has impacted previous theories of planetary formation.
A group of astronomers led by Jerome Orosz at San Diego State University, including astronomers from Tel-Aviv University in Israel, discovered the planetary system via NASA's Kepler space telescope in 2012. In November 2013, evidence of a third planet orbiting between the planets b and c, Kepler-47d, was announced. Later analyses of transit data from the Kepler space telescope confirmed the existence of Kepler-47d.