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Two Giant Planets, Companion Star Discovered In Known Planetary System
2013-01-25 09:56:36

Lee Rannals for redOrbit.com — Your Universe Online Astronomers discovered that the HAT-P-7 planetary system includes at least two giant planets and one companion star. The discovery of a previously unknown companion, HAT-P-7B, to the central star, HAT-P-7, as well as confirmation of another giant planet, HAT-P-7c, orbiting outside of the retrograde planet HAT-P-7b offers up new insights into how such planets may form. Astronomers used the Subaru Telescope to discover the first...