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) 0.29169 ± 0.00001[2] AU
Eccentricity (e) 0.63 ± 0.01[2]
Orbital period(P) 51.638 ± 0.004[2] d
Argument of
periastron
(ω) 174 ± 2[2]°
Time of periastron (T0) 2,450,793.3 ± 0.2[2] JD
Semi-amplitude (K) 108 ± 4[2] m/s
Physical characteristics
Minimum mass(m sin i)1.78 ± 0.04[2] MJ
Discovery information
Discovery date Apr 4, 2001[3]
Discoverer(s) Naef, Mayor et al.[4]
Discovery method Radial velocity
Discovery site California
Discovery status Published[4]
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.[3][4]

References

  1. 1 2 3 4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
  2. 1 2 3 4 5 6 7 8 9 10 11 12 13 Meschiari, Stefano; et al. (2011). "The Lick-Carnegie Survey: Four New Exoplanet Candidates". The Astrophysical Journal. 727 (2). 117. arXiv:1011.4068Freely accessible. Bibcode:2011ApJ...727..117M. doi:10.1088/0004-637X/727/2/117.
  3. 1 2 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
  4. 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/0310261Freely accessible. Bibcode:2004A&A...414..351N. doi:10.1051/0004-6361:20034091.

External links

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


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