Institute for Astronomy | University of Hawaii | 2019 Apr 16
A team of astronomers, including Nader Haghighipour from the Institute for Astronomy at the University of Hawaiʻi at Mānoa, have discovered a third planet in the circumbinary planetary system Kepler-47.
This discovery cements the system's title as the most interesting of the binary-star worlds, and marks the first complete and dynamically full planetary system around a binary star. A complete and dynamically full planetary system is one that cannot have any more planets — like our solar system. Circumbinary planets are those that orbit both stars of a binary star system, like Tatooine in the Star Wars films.
With its three planets orbiting two stars, Kepler-47 is the only known multi-planet circumbinary system. The orbit of the outer planet of this system falls well within the binary's habitable zone, the region where an Earth-like planet could maintain liquid water on its surface. ...
Astronomers Discover Third Planet in Kepler-47 Circumbinary System
San Diego State University | 2019 Apr 15
Discovery of a Third Transiting Planet in the Kepler-47 Circumbinary System ~ Jerome A. Orosz et al
- Astronomical Journal 157(5):174 (May 2019) DOI: 10.3847/1538-3881/ab0ca0