HD 87883 b

HD 87883 b
Extrasolar planet List of extrasolar planets
Parent star
Star HD 87883
Constellation Leo Minor
Right ascension (α) 10h 08m 43.140s[1]
Declination (δ) +34° 14′ 32.13″[1]
Apparent magnitude (mV) 7.56
Distance59.4±0.6[1] ly
(18.2±0.2[1] pc)
Spectral type K0V
Orbital elements
Semimajor axis(a) 3.60±0.08 AU
Periastron (q) 1.69 AU
Apastron (Q) 5.51 AU
Eccentricity (e) 0.53±0.12
Orbital period(P) 2754±87 d
(7.54±0.24 y)
Argument of
periastron		 (ω) 191±15°
Time of periastron (T0) 11139±90 JD
Physical characteristics
Minimum mass(m sin i)1.78±0.34 MJ
Discovery information
Discovery date August 13, 2009
Discoverer(s)
Discovery method Radial velocity
Discovery status Published[2]
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 87883 b is an extrasolar planet which orbits the K-type main sequence star HD 87883, located approximately 59 light years away in the constellation Leo Minor. It is a long-period planet, taking seven and a half years to orbit the star at the average distance of 3.60 AU. However this planet orbits in a very eccentric path, which ranges distance from as close as 1.69 AU to as far as 5.51 AU. This planet was detected by radial velocity method on August 13, 2009.[2]

References

  1. ↑ 1.0 1.1 1.2 1.3 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
  2. ↑ 2.0 2.1 Fischer, Debra et al. (2009). "Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory". The Astrophysical Journal 703 (2): 1545–1556. arXiv:0908.1596. Bibcode:2009ApJ...703.1545F. doi:10.1088/0004-637X/703/2/1545.

Coordinates: 10h 08m 43.1395s, +34° 14′ 32.135″