HD 167042

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HD 167042
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Draco
Right ascension 18h 10m 31.6403s
Declination +54° 17′ 11.588″
Apparent magnitude (V) +5.97
Distance 163 ly
(50 pc)
Spectral type K1III
Other designations
BD+54°1950, GC 24820, HIP 89017, HR 6817, LTT 15382, SAO 30784
Database references

HD 167042 is a 6th magnitude K-type giant star located approximately 163 light-years away in Draco constellation. It has mass of 1.64 times that of the Sun and the age is only 2.2 billion years old. When this star was a main sequence, it was white mid to late A-type star based on its mass.

Planetary system[edit]

On 28 November 2007, a preprint of the discovery of the planet HD 167042 b was posted to the arXiv server. The peer reviewed paper was then published in The Astrophysical Journal on 1 March 2008.[1] The discovery was later independently confirmed.[2]

The HD 167042 planetary system[1]
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
b >1.7 MJ 1.30 412.6 ± 4 0.027 ± 0.04

See also[edit]


  1. ^ a b Johnson, John Asher; et al. (2008). "Retired A Stars and Their Companions. II. Jovian Planets Orbiting κ CrB and HD 167042". The Astrophysical Journal. 675 (1): 784–789. arXiv:0711.4367Freely accessible. Bibcode:2008ApJ...675..784J. doi:10.1086/526453. 
  2. ^ Sato, Bun'ei; et al. (2008). "Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042". Publications of the Astronomical Society of Japan. 60 (6): 1317–1326. arXiv:0807.0268Freely accessible. Bibcode:2008PASJ...60.1317S. doi:10.1093/pasj/60.6.1317. 

External links[edit]

Coordinates: Sky map 18h 10m 31.6403s, +54° 17′ 11.588″