HD 59686

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**HD 59686**
Observation data Epoch J2000.0
Constellation (pronunciation)	Gemini
Right ascension	7^h 31^m 48.4^s
Declination	+17° 05′ 09.8″
Apparent magnitude (V)	+5.45
Characteristics
Spectral type	K2III
Variable type	none
Astrometry
Radial velocity (R_v)	-40.2 km/s
Proper motion (μ)	RA: 42.65 mas/yr Dec.: -75.39 mas/yr
Parallax (π)	10.81 ± 0.75 mas
Distance	301.72 ly (92.5 pc)
Absolute magnitude (M_V)	0.62
Other designations
BD+17º1596, GC 10073, HIP 36616, HR 2877, SAO 96985.

HD 59686 is a 5^th magnitude star in the constellation Gemini. It is an orange giant meaning that it has ceased fusing hydrogen in its core and on its way to becoming a red giant. It is about 300 ly from Earth.

In late 2003, the planet was announced orbiting the giant star by Mitchell which he used Doppler spectrometer to look for effects on the star caused by the gravitational tug of the orbiting planet.

[edit] HD 59686 b

**HD 59686 b**
Orbital elements
Extrasolar planet		List of extrasolar planets
Semimajor axis	(a)	0.911 AU
Eccentricity	(e)	0
Orbital period	(P)	303 d
Angular distance	(θ)	9.902 mas
Physical characteristics
Mass	(m)	>5.25 M_J
Discovery information
Discovery date		November 16, 2003
Discoverer(s)		Mitchell et al.
Detection method		Doppler Spectroscopy
Discovery status		Published

HD 59686 b is a mid-superjovian planet that orbits at 91.1% of distance between Earth and the Sun or 0.911 AU in a very circular orbit (e=0) of giant star.