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