HD 187085 b

HD 187085 b
Exoplanet List of exoplanets
Parent star
Star HD 187085
Constellation Sagittarius
Right ascension (α) 19h 49m 33.9667s
Declination (δ) –37° 46′ 49.981″
Distance147 ly
(45 pc)
Spectral type G0V
Orbital elements
Semi-major axis(a) 2.05 AU
Periastron (q) 1.38 AU
Apastron (Q) 2.72 AU
Eccentricity (e) 0.33[1]
Orbital period(P) 986 d
(2.70 y)
Orbital speed (υ) 22.7 km/s
Argument of
periastron		 (ω) 94°
Time of periastron (T0) 2,450,912 JD
Semi-amplitude (K) 26 m/s
Physical characteristics
Mass(m)>0.75 MJ
Discovery information
Discovery date March 14, 2006
Discoverer(s) Jones et al.
Discovery method Doppler spectroscopy
Discovery site  Australia
Discovery status Published
Other designations
HIP 97546 b

HD 187085 b is an extrasolar planet discovered in 2006 by a team led by Hugh Jones. HD 187085 b orbits its star in a highly eccentric orbit. The discovery was made as part of the Anglo-Australian Planet Search.[2]

Their interpretation of the data set the eccentricity at 0.47. Using a statistical computer program, another team reinterpreted the same data for a lower eccentricity of 0.33.[1]

See also

References

  1. 1 2 Balan, Sreekumar T.; Ofer Lahav (2008). "ExoFit: Orbital Parameters of Extra-solar Planets from Radial Velocities". arXiv:0805.3532v1 [astro-ph].
  2. ↑ Jones, Hugh R. A.; et al. (2006). "High-eccentricity planets from the Anglo-Australian Planet Search". Monthly Notices of the Royal Astronomical Society. 369 (1): 249–256. arXiv:astro-ph/0603335. Bibcode:2006MNRAS.369..249J. doi:10.1111/j.1365-2966.2006.10298.x.
  • "Notes for planet HD 187085 b". The Extrasolar Planets Encyclopaedia.
  • "HD 187085". Exoplanets.


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