HD 74156 b

HD 74156 b
Exoplanet List of exoplanets
Parent star
Star HD 74156
Constellation Hydra
Right ascension (α) 08h 42m 25.122s[1]
Declination (δ) +04° 34′ 41.15″[1]
Apparent magnitude (mV) 7.62
Distance210±7[1] ly
(64±2[1] pc)
Spectral type G1V[2]
Mass (m) 1.24[2] M☉
Radius (r) 1.64 ± 0.19[2] R☉
Temperature (T) 5960 ± 100[2] K
Metallicity [Fe/H] 0.13[2]
Age 3.7 ± 0.4[2] Gyr
Orbital elements
Semi-major axis(a) 0.2916±0.0033[3] AU
Eccentricity (e) 0.6380±0.0061[3]
Orbital period(P) 51.6385±0.0015[3] d
Argument of
periastron		 (ω) 175.35±0.92[3]°
Time of periastron (T0) 2450793.39±0.11[3] JD
Semi-amplitude (K) 109.1±1.6[3] m/s
Physical characteristics
Minimum mass(m sin i)1.778±0.020[3] MJ
Discovery information
Discovery date Apr 4, 2001[4]
Discoverer(s) Naef, Mayor et al.[5]
Discovery method Radial velocity
Discovery site California
Discovery status Published[5]
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 74156 b is an extrasolar planet at least 1.88 times the mass of Jupiter that orbits the star HD 74156. It is most likely a gas giant. This planet was discovered in April 2001 by Dominique Naef and Michel Mayor along with the second planet HD 74156 c.[4][5]

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 Meschiari, Stefano; et al. (2011). "The Lick-Carnegie Survey: Four New Exoplanet Candidates". The Astrophysical Journal. 727 (2). 117. arXiv:1011.4068. Bibcode:2011ApJ...727..117M. doi:10.1088/0004-637X/727/2/117.
  3. 1 2 3 4 5 6 7 Feng, Y. Katherina; et al. (2015). "The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets". The Astrophysical Journal. 800. 22. arXiv:1501.00633. Bibcode:2015ApJ...800...22F. doi:10.1088/0004-637X/800/1/22.
  4. 1 2 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
  5. 1 2 3 Naef, D.; et al. (2004). "The ELODIE survey for northern extra-solar planets III. Three planetary candidates detected with ELODIE". Astronomy and Astrophysics. 414 (1): 351–359. arXiv:astro-ph/0310261. Bibcode:2004A&A...414..351N. doi:10.1051/0004-6361:20034091.

Coordinates: 08h 42m 25.1222s, +04° 34′ 41.151″


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