HD 168746 b

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
HD 168746 b
Exoplanet List of exoplanets
Parent star
Star HD 168746
Constellation Serpens
Right ascension (α) 18h 21m 49.7827s[1]
Declination (δ) −11° 55′ 21.652″[1]
Distance 137±2[1] ly
(42.0±0.5[1] pc)
Spectral type G5V
Orbital elements
Semi-major axis (a) 0.065 AU
Eccentricity (e) 0.081 ± 0.029
Orbital period (P) 6.403 ± 0.001 d
Argument of
periastron
(ω) 16.30 ± 20.88°
Time of periastron (T0) 2,451,994.7 ± 0.4 JD
Semi-amplitude (K) 28.6 ± 1.7 m/s
Physical characteristics
Minimum mass (m sin i) 0.23 MJ
(73 M)
Discovery information
Discovery date April 15, 2000[2]
Discoverer(s) Pepe, Mayor,
Galland et al.
Discovery method Doppler spectroscopy
(CORALIE)
Discovery site La Silla Observatory
Discovery status Published[3]
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data
Exoplanet Archive data
Open Exoplanet Catalogue data

HD 168746 b is an extrasolar planet orbiting the star HD 168746.[2] It has a minimum mass about one fourth that of Jupiter, so it is most likely a gas giant. It orbits very near the star in a so-called "torch orbit" completing one revolution in only about six and half days.[3]

See also[edit]

References[edit]

External links[edit]

Coordinates: Sky map 18h 21m 49.7832s, −11° 55′ 21.660″