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 |
| Distance | 210 ± 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 | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
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 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
- 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:1011.4068. Bibcode:2011ApJ...727..117M. doi:10.1088/0004-637X/727/2/117.
- 1 2 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
- 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.
External links
Coordinates: 
08h 42m 25.1222s, +04° 34′ 41.151″
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