HD 87883 b

Last updated
HD 87883 b
Discovery
Discovery dateAugust 13, 2009
Radial velocity
Orbital characteristics [1]
Apastron 6.48 AU (969,000,000 km)
Periastron 1.06 AU (159,000,000 km)
3.77+0.12
−0.094  AU
Eccentricity 0.720+0.038
−0.027
8.23+0.32
−0.34  yr
Inclination 16.8+1.7
−1.4 or 163.2+1.4
−1.7
109.9+4.0
−4.1
2456913+17
−16
282.1±3.7
Star HD 87883
Physical characteristics [1]
Mass 6.31+0.31
−0.32

    HD 87883 b is an extrasolar planet which orbits HD 87883, a K-type star on the main sequence, approximately 59 light years from Earth in the constellation of Leo Minor. It is a long-period planet, taking 8.23 years to orbit the star at the average distance of 3.77 AU in a very eccentric path, which ranges distance from 1.06 AU to 6.48 AU. It was detected by the radial velocity method on August 13, 2009. [2]

    Astrometry of HD 87883 has determined an orbital inclination of either 16.8° or 163.2°, depending on whether the solution is prograde or retrograde. This, combined with the minimum mass, gives a true mass of 6.31  MJ (Jupiter masses). [1]

    References

    1. 1 2 3 Li, Yiting; Brandt, Timothy D.; Brandt, G. Mirek; Dupuy, Trent J.; Michalik, Daniel; Jensen-Clem, Rebecca; Zeng, Yunlin; Faherty, Jacqueline; Mitra, Elena L. (2021). "Precise Masses and Orbits for Nine Radial-velocity Exoplanets". The Astronomical Journal. 162 (6): 266. arXiv: 2109.10422 . Bibcode:2021AJ....162..266L. doi: 10.3847/1538-3881/ac27ab . S2CID   237592581.
    2. ↑ 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. S2CID   15524804.
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