HD 126614 Ab
Extrasolar planet | List of extrasolar planets | |
---|---|---|
Parent star | ||
Star | HD 126614 A | |
Constellation | Virgo | |
Right ascension | (α) | 14h 26m 48.281s[1] |
Declination | (δ) | –05° 10′ 40.01″[1] |
Apparent magnitude | (mV) | 8.81 |
Distance | 240 ± 20[1] ly (73 ± 5[1] pc) | |
Spectral type | K0 | |
Mass | (m) | 1.145 M☉ |
Orbital elements | ||
Semimajor axis | (a) | 2.28 ± 0.02 AU (340 Gm) |
31.4 mas | ||
Periastron | (q) | 0.94 AU (141 Gm) |
Apastron | (Q) | 3.61 AU (540 Gm) |
Eccentricity | (e) | 0.59 ± 0.15 |
Orbital period | (P) | 1186 ± 15 d (3.25 y) |
Orbital speed | (υ) | 20.9 km/s |
Argument of periastron |
(ω) | 239 ± 23° |
Time of periastron | (T0) | 22511 ± 52 JD |
Semi-amplitude | (K) | 9.2 ± 1.6 m/s |
Physical characteristics | ||
Minimum mass | (m sin i) | 0.42 ± 0.05 MJ |
Discovery information | ||
Discovery date | November 13, 2009 | |
Discoverer(s) | Howard et al. | |
Discovery method | Radial velocity | |
Discovery site | Keck Observatory | |
Discovery status | Published[2] | |
Database references | ||
Extrasolar Planets Encyclopaedia | data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
HD 126614 Ab, or simply HD 126614 b, (also known as HIP 70623 b) is an extrasolar planet which orbits the primary K-type star HD 126614 A, located approximately 240 light years away in the constellation Virgo. It was discovered on November 13, 2009. However, this planet has a highly eccentric orbit around its parent star. The planetary distance ranges from 0.94 AU to 3.61 AU. HD 126614 A also has the highest metallicity of any star hosting any exoplanets, 0.56.
See also
Other planets that were discovered or confirmed on November 13, 2009:
- HD 34445 b
- HD 24496 Ab
- HD 13931 b
- Gliese 179 b
- QS Virginis b
References
- ↑ 1.0 1.1 1.2 1.3 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
- ↑ Howard, Andrew W. et al. (2010). "The California Planet Survey. I. Four New Giant Exoplanets". The Astrophysical Journal 721 (2): 1467–1481. arXiv:1003.3488. Bibcode:2010ApJ...721.1467H. doi:10.1088/0004-637X/721/2/1467.
- Jean Schneider (2011). "Notes for Planet HD 126614 b". Extrasolar Planets Encyclopaedia. Retrieved 29 September 2011.
Coordinates: 14h 26m 48.2804s, −05° 10′ 40.009″