HD 1461 b

HD 1461 b is an extrasolar planet, orbiting the 6th magnitude G-type star HD 1461, 76.5 light years away in the constellation Cetus. This planet has a minimum mass 6.4 times that of Earth and orbits at a distance of 0.0634 AU with an eccentricity of less than 0.131. It is currently unknown whether the planet is a gas giant like Uranus or Neptune, or has terrestrial composition like CoRoT-7b. This planet was announced on 13 December 2009 after it was discovered using radial velocity measurements taken at the Keck and Anglo-Australian Observatories.^[2][3]

HD 1461 b

Discovery
Discovered by	Vogt et al.
Discovery site	Keck Observatory Anglo-Australian Observatory
Discovery date	2009-12-14
Detection method	Radial velocity
Orbital characteristics
Semi-major axis	0.0634±0.0022 AU
Eccentricity	<0.131[1]
Orbital period (sidereal)	5.77152±0.00045[1] d
Semi-amplitude	2.28±0.15[1]
Star	HD 1461