HD 154345 b

HD 154345 b, is a Jupiter-sized extrasolar planet orbiting the star HD 154345.
==Discovery==
Wright et al. discovered the planet in March 2006 using the radial velocity method to detect the small wobbling movement of the star caused by the gravity of the planet. The discovery was confirmed in May 2007.
==Characteristics==
The planet has a mass at least slightly less than that of Jupiter. It orbits its parent star at the distance of 4.18 AU. Its orbital period is about 9.095 Earth years and its orbit is circular. There are no interior planets of minimum mass (m sini) greater than 0.3 Jupiter. Jupiter-like planets with these orbital and system characteristics are unlikely to be perturbed from the star's inclination. Since the star's inclination is known as around 50°, this would make the planet's most likely mass greater than Jupiter's mass but less than twice that mass.
As such HD 154345 b is presumed to be a gas giant "Jupiter twin". Depending on composition the two planets may be around the same size, or HD 154345 b may be larger. This planet may also harbor a system of moons and rings.
==See also==
* HD 24040 b
==References==
Category:Exoplanets
Category:Hercules (constellation)
Category:Exoplanets discovered in 2006
Category:Gas giants
Category:Exoplanets detected by radial velocity