HD 5319 b

HD 5319 b
Exoplanet List of exoplanets
Parent star
Star HD 5319
Constellation Cetus
Right ascension (α) 00h 55m 01.40s[1]
Declination (δ) +00° 47′ 22.4″[1]
Apparent magnitude (mV) 8.05
Distance370 ± 40[1] ly
(110 ± 10[1] pc)
Spectral type K3IV[2]
Orbital elements
Semi-major axis(a) 1.6697 ± 0.0036[2] AU
Eccentricity (e) 0.02 ± 0.03[2]
Orbital period(P) 641 ± 2[2] d
Argument of
periastron		 (ω) 97 ± 90[2]°
Time of periastron (T0) 2,456,288 ± 790[2] JD
Semi-amplitude (K) 31.6 ± 1.2[2] m/s
Physical characteristics
Minimum mass(m sin i)1.76 ± 0.07[2] MJ
Discovery information
Discovery date January 11, 2007
Discoverer(s) Robinson et al.[3]
Discovery method Doppler spectroscopy
Discovery site California & Carnegie
Planet Search
Discovery status Published[3]
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 5319 b is a gas giant exoplanet discovered in 2007[3] in the constellation of Cetus. This planet has a minimum mass nearly two times that of Jupiter. The planet has an almost circular orbit, with an eccentricity of only 0.02 and a period of 641 days. An additional planet in the system was discovered in 2015 and may be in a 4:3 mean motion resonance with planet b.[2]

References

  1. 1 2 3 4 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. 1 2 3 4 5 6 7 8 9 Giguere, Matthew J.; et al. (2015). "Newly Discovered Planets Orbiting HD 5319, HD 11506, HD 75784 and HD 10442 from the N2K Consortium". The Astrophysical Journal. 799 (1). 89. arXiv:1411.5374. Bibcode:2015ApJ...799...89G. doi:10.1088/0004-637X/799/1/89.
  3. 1 2 3 Robinson, Sarah E.; et al. (2007). "Two Jovian-Mass Planets in Earthlike Orbits". The Astrophysical Journal. 670 (2): 1391–1400. arXiv:0708.0832. Bibcode:2007ApJ...670.1391R. doi:10.1086/522106.

Coordinates: 00h 55m 01.4005s, +00° 47′ 22.392″


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