HD 16175 b

HD 16175 b
Exoplanet List of exoplanets
Parent star
Star HD 16175
Constellation Andromeda
Right ascension (α) 02h 37m 01.9110s
Declination (δ) +42° 03′ 45.479″
Apparent magnitude (mV) 7.28
Distance195 ly
(59.8 pc)
Spectral type G0
Orbital elements
Semi-major axis(a) 2.07 AU
(310 Gm)
Periastron (q) 1.08 AU
(162 Gm)
Apastron (Q) 3.06 AU
(458 Gm)
Eccentricity (e) 0.48 ± 0.1
Orbital period(P) 856 ± 80 d
(2.34 y)
Orbital speed (υ) 26.4 km/s
Argument of
periastron		 (ω) 223.2 ± 8°
Time of periastron (T0) 2452950 ± 100 JD
Semi-amplitude (K) 54.1 m/s
Physical characteristics
Minimum mass(m sin i)4.5 MJ
Discovery information
Discovery date Sept 20, 2007
published Oct 22, 2007
Discoverer(s) Peek "et al."
Discovery method radial velocity
Discovery site Lick Observatory
Discovery status Published[1]
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 16175 b is an extrasolar planet located approximately 195 light-years away in the constellation of Andromeda, orbiting the star HD 16175. This planet masses 4.5 times that of Jupiter. However, the mass is only minimum since inclination of the orbital plane is not known. This planet orbits at about 310 gigameters, taking 2.34 years to revolve around the star. The orbit of the planet is eccentric at 48%. At periastron, the distance is close as 161 Gm; and at apastron, the distance is far as 459 Gm from the parent yellow star.

As it is typical for most exoplanets found so far, it used the technique called radial velocity or “wobble method”. It was discovered on September 20, 2007 and published on October 22, 2007 by Peek "et al." and other team members.[1]

See also

References

  1. 1 2 Peek, John Asher; et al. (2009). "Old, rich, and eccentric: two jovian planets orbiting evolved metal-rich stars". Publications of the Astronomical Society of the Pacific. 121 (880): 613–620. arXiv:0904.2786Freely accessible. Bibcode:2009PASP..121..613P. doi:10.1086/599862.

External links

Coordinates: 02h 37m 01.9110s, +42° 03′ 45.479″


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