HD 27894 b

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HD 27894 b
Extrasolar planet List of extrasolar planets
Parent star
Star HD 27894
Constellation Reticulum
Right ascension (α) 04h 20m 47.0473s
Declination (δ) –59° 24′ 39.014″
Distance 138.1 ly
(42.37 pc)
Spectral type K2V
Orbital elements
Semimajor axis (a) 0.1221±0.0071 AU
Periastron (q) 0.116 AU
Apastron (Q) 0.128 AU
Eccentricity (e) 0.049±0.08
Orbital period (P) 17.991±0.007 d
(0.049256 y)
Orbital speed (υ) 74.1 km/s
Argument of
periastron
(ω) 132.9±9.7°
Time of periastron (T0) 2,453,275.46±0.48 JD
Semi-amplitude (K) 58.1±0.5 m/s
Physical characteristics
Mass (m) >0.618±0.088 MJ
(>196 M)
Discovery information
Discovery date 15 Feb 2005
Discoverer(s) Moutou, Mayor,
Bouchy et al.
Discovery method Radial velocity
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data

HD 27894 b is a gas giant with a mass at least two thirds that of Jupiter, or twice that of Saturn. The distance from the planet to the star is one third compared that of Mercury from our Sun, and it takes almost exactly 18 days to complete one roughly circular orbit.[1]

References[edit]

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Coordinates: Sky map 04h 20m 47.0473s, −59° 24′ 39.014″