HD 168746 b

HD 168746 b
Exoplanet List of exoplanets
Parent star
Star HD 168746
Constellation Serpens
Right ascension (α) 18h 21m 49.7832s
Declination (δ) –11° 55 21.660
Distance140.6 ly
(43.12 pc)
Spectral type G5V
Orbital elements
Semi-major axis(a) 0.065 AU
Periastron (q) 0.060 AU
Apastron (Q) 0.070 AU
Eccentricity (e) 0.081 ± 0.029
Orbital period(P) 6.403 ± 0.001 d
(0.01753 y)
Orbital speed (υ) 110 km/s
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[1]
Discoverer(s) Pepe, Mayor,
Galland et al.
Discovery method Doppler spectroscopy
(CORALIE)
Discovery site La Silla Observatory
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 168746 b is an extrasolar planet orbiting the star HD 168746.[1] 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.

See also

References

  1. 1 2 "Exoplanets Galore!" (Press release). Garching, Germany: European Southern Observatory. April 15, 2000. Retrieved December 30, 2012.

External links

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


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