HD 126614 Ab

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^[2] 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, at +0.56 dex.^[3]

HD 126614 Ab

Discovery
Discovered by	Howard et al.
Discovery site	Keck Observatory
Discovery date	November 13, 2009
Detection method	Radial velocity
Orbital characteristics[1]
Semi-major axis	2.249+0.088 −0.096 AU
Eccentricity	0.548+0.063 −0.062
Orbital period (sidereal)	3.442 ± 0.02 years (1,257.2 ± 7.3 d)
Inclination	97.477°+35.340° −37.849°
Longitude of ascending node	182.778°+120.999° −117.633°
Time of periastron	2450124.747+26.090 −28.486
Argument of periastron	304.917°+9.910° −12.242°
Semi-amplitude	7.760+0.699 −0.516 m/s
Star	HD 126614 A
Physical characteristics[1]
Mass	0.339+0.204 −0.019 MJ

In 2022, the true mass and inclination of HD 126614 Ab were measured via astrometry.^[1]

See also

Other planets that were discovered or confirmed on November 13, 2009:

• HD 34445 b
• HD 13931 b
• Gliese 179 b

References

1. Feng, Fabo; Butler, R. Paul; et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series. 262 (21): 21. arXiv:2208.12720. Bibcode:2022ApJS..262...21F. doi:10.3847/1538-4365/ac7e57. S2CID 251864022.
2. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
3. 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. S2CID 14147776.

• Jean Schneider (2011). "Notes for Planet HD 126614 b". Extrasolar Planets Encyclopaedia. Archived from the original on 2 June 2012. Retrieved 29 September 2011.