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Gliese 849 b is an
extrasolar planet An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
approximately 29 light years away in the constellation of
Aquarius Aquarius may refer to: Astrology * Aquarius (astrology), an astrological sign * Age of Aquarius, a time period in the cycle of astrological ages Astronomy * Aquarius (constellation) * Aquarius in Chinese astronomy Arts and entertainme ...
. It is the first long-period
Jupiter Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but slightly less than one-thousandth t ...
-like
planet A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a you ...
discovered around a red dwarf, announced in August 2006 by the
California and Carnegie Planet Search California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
team using the radial velocity technique. The previously longest-period Jupiter-like planet around a red dwarf was Gliese 876 b. There are, however, two disproven longer period Jupiter-like planets around Lalande 21185. There are indications of a possible second companion. The planet's mass is less than that of Jupiter, though only the
minimum mass In astronomy, minimum mass is the lower-bound calculated mass of observed objects such as planets, stars and binary systems, nebulae, and black holes. Minimum mass is a widely cited statistic for extrasolar planets detected by the radial veloci ...
is known. The
distance Distance is a numerical or occasionally qualitative measurement of how far apart objects or points are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria (e.g. "two counties over"). ...
of the planet is 2.35  AU and it takes 5.17 years (1890 days) to revolve in a circular orbit. File:Diagram of the probable structure of the Gliese 849 Star system.png, Diagram of the probable structure of the Gliese 849 Star system


See also

* List of star systems within 25–30 light-years


References


External links

* Aquarius (constellation) Exoplanets discovered in 2006 Giant planets Exoplanets detected by radial velocity 8 {{extrasolar-planet-stub