HD 159868

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HD 159868
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Scorpius
Right ascension  17h 38m 59.526s
Declination −43° 08′ 43.85″
Apparent magnitude (V) +7.24
Absolute magnitude (V)+3.63[note 1]
Distance171.93 ly
(52.71 pc)
Spectral typeG5V
Other designations
CD-43° 11901, GC 23898, GCRV 67207, GJ 4014, HIP 86375, SAO 228234
Database references
SIMBADdata

HD 159868 is a yellow dwarf star approximately 172 light-years away in the constellation of Scorpius. The star is thought to be 3.05 times more luminous than the Sun, yet the metallicity is identical to the Sun.

Planetary system[edit]

The HD 159868 planetary system[1][2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
c >0.73 ± 0.05 MJ 1 ± 0.01 352.3 ± 1.3 0.15 ± 0.05
b >2.1 ± 0.1 MJ 2.25 ± 0.03 1178.4 ± 8.8 0.01 ± 0.03

See also[edit]

References[edit]

  1. ^ a b O'Toole, Simon J.; et al. (2007). "New Planets around Three G Dwarfs". The Astrophysical Journal. 660 (2): 1636–1641. arXiv:astro-ph/0702213. Bibcode:2007ApJ...660.1636O. doi:10.1086/513563.
  2. ^ a b Wittenmyer; et al. (2012). "The Anglo-Australian Planet Search. XXII. Two New Multi-planet Systems". The Astrophysical Journal. 753 (2). arXiv:1205.2765. Bibcode:2012ApJ...753..169W. doi:10.1088/0004-637X/753/2/169.

Notes[edit]

  1. ^ The calculation for absolute magnitude applied here is , where is the apparent magnitude and is the luminosity distance in parsecs.

External links[edit]

Coordinates: Sky map 17h 38m 59.526s, −43° 08′ 43.85″