HD 181433 b

HD 181433 b is an extrasolar planet located approximately 87 light years away^[4] in the constellation of Pavo, orbiting the star HD 181433. This planet has mass at least 7.56 times that of Earth. This planet is classified as a super-Earth and orbits at 0.080 AU and varies only about 0.063 AU with an eccentricity of 0.396.^[3] François Bouchy et al. have published a paper detailing the HD 181433 planetary system in Astronomy and Astrophysics.^[1]

HD 181433 b

Discovery
Discovered by	Bouchy et al.[1]
Discovery site	La Silla Observatory, Chile[2]
Discovery date	June 16, 2008[2]
Detection method	Doppler spectroscopy[2]
Orbital characteristics
Apastron	0.111 AU (16,600,000 km)
Periastron	0.048 AU (7,200,000 km)
Semi-major axis	0.080 AU (12,000,000 km)[3]
Eccentricity	0.396[3]
Orbital period (sidereal)	9.3743[3] d
Average orbital speed	93
Time of periastron	2454542 ± 0.26[3]
Argument of periastron	202 ± 10[3]
Star	HD 181433