V391 Pegasi b

V391 Pegasi b, also known as HS 2201+2610 b, is an extrasolar planet orbiting the star V391 Pegasi approximately 4570 light-years away in the constellation of Pegasus. The planet was discovered by means of variable star timing, which measured anomalies in variability of the star caused by a planet. It is the first planet to be detected with this method. It found to have mass of 3.2 times Jupiter, semi-major axis of 1.7 AU, and orbital period of 1170 days. The planet was discovered in March 2007 and published in September 2007. Its survival indicates that planets at Earth-like distances can survive their star's red-giant phase, though this is a much larger planet than Earth (about the same size as Jupiter and Saturn).Planet discovered that offers clues to Earth's future
== References ==
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== External links ==
* The Extrasolar Planets Encyclopaedia: Notes for planet V391 Pegasi b
Category:Exoplanets
Category:Pegasus (constellation)
Category:Gas giants
Category:Exoplanets discovered in 2007
Category:Exoplanets detected by timing