BD−08°2823 b

BD−08°2823 b (also known as HIP 49067 b) is an extrasolar planet which orbits the K-type main-sequence star BD−08°2823, located approximately 135 light-years away in the constellation Sextans. This planet has at least 14 times the mass of Earth and takes four fifths of a week to orbit the star at a semi-major axis of 0.056 AU. This planet is classified as a hot Neptune. This planet was detected by High Accuracy Radial Velocity Planet Searcher (HARPS) on October 19, 2009, together with 29 other planets, including BD−08°2823 c.^[1]

BD−08°2823 b

Discovery
Discovered by	Hebrard et al.
Discovery site	La Silla Observatory
Discovery date	October 19, 2009
Detection method	Radial velocity (HARPS)
Orbital characteristics
Semi-major axis	0.056 AU (8.4 million km)
Eccentricity	0.15
Orbital period (sidereal)	5.60 d
Time of periastron	2,454,637.7 ± 1.6
Argument of periastron	30 ± 100
Semi-amplitude	6.5 ± 1.0
Star	BD−08°2823