BD-08°2823 b

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BD-08°2823 b
Exoplanet List of exoplanets
Parent star
Star BD-08°2823
Constellation Sextans
Right ascension (α) 10h 00m 47.7213s
Declination (δ) –09° 31′ 00.046″
Apparent magnitude (mV) 9.86
Distance 137.3 ± 9.8 ly
(43.9 ± 3 pc)
Spectral type K3V
Orbital elements
Semi-major axis (a) 0.056 AU
(8.3 Gm)
Periastron (q) 0.047 AU
(7.0 Gm)
Apastron (Q) 0.064 AU
(9.6 Gm)
Eccentricity (e) 0.15
Orbital period (P) 5.60 d
    (134 h)
Orbital speed (υ) 108 km/s
Argument of
(ω) 30 ± 100°
Time of periastron (T0) 2454637.7 ± 1.6 JD
Semi-amplitude (K) 6.5 ± 1.0 m/s
Physical characteristics
Minimum mass (m sin i) 0.045 MJ
(14 M)
Discovery information
Discovery date October 19, 2009
Discoverer(s) Hebrard et al.
Discovery method Radial velocity (HARPS)
Discovery site La Silla Observatory
Discovery status Preprint
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue data

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 137 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 semimajor axis of 0.056 AU. This planet is classified as a hot Neptune. This planet was detected by HARPS on October 19, 2009, together with 29 other planets, including BD-08°2823 c.


Coordinates: Sky map 10h 00m 47.7213s, −09° 31′ 00.046″