HD 117207 b
Encyclopedia
HD 117207 b is an extrasolar planet
orbiting at 3.79 astronomical unit
s taking about 2597 days to complete its orbit around HD 117207
. Its orbit is moderate in eccentricity
. This planet was announced in January 2005 by Marcy
in Keck Observatory. The planet has at least 1.88 Jupiter masses.
Extrasolar planet
An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...
orbiting at 3.79 astronomical unit
Astronomical unit
An astronomical unit is a unit of length equal to about or approximately the mean Earth–Sun distance....
s taking about 2597 days to complete its orbit around HD 117207
HD 117207
HD 117207 is a star located approximately 108 light years away in the constellation Centaurus. It is a yellow dwarf or subgiant star of mass 7% greater than our Sun. It has apparent magnitude 7.26 which is not visible to the naked eye and has absolute magnitude of 4.67, which is visible to the...
. Its orbit is moderate in eccentricity
Orbital eccentricity
The orbital eccentricity of an astronomical body is the amount by which its orbit deviates from a perfect circle, where 0 is perfectly circular, and 1.0 is a parabola, and no longer a closed orbit...
. This planet was announced in January 2005 by Marcy
Geoffrey Marcy
Geoffrey W. Marcy is an American astronomer, who is currently Professor of Astronomy at the University of California, Berkeley, famous for discovering more extrasolar planets than anyone else, 70 out of the first 100 to be discovered, along with R...
in Keck Observatory. The planet has at least 1.88 Jupiter masses.