HD 126614

HD 126614 is a 9th magnitude trinary star located approximately 240 light years away in the constellation Virgo. HD 126614 A is a K-type star while HD 126614 B and NLTT 37349 are M-type stars. Star A is larger, cooler, brighter, and more massive than our Sun. Its metal content is 3.6 times as much as the Sun, the highest metallicity planet-hosting star discovered in 2009.

The HD 126614 planetary system[2]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥0.38 ± 0.04 MJ 2.35 ± 0.02 1244 ± 17 0.41 ± 0.10
HD 126614
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Virgo
Right ascension 14h 26m 48.2796s[1]
Declination –05° 10 40.0120[1]
Apparent magnitude (V) 8.7
Characteristics
Spectral type K0V[2]/M[2]/M5.5V[3]
Apparent magnitude (B) 9.9
Apparent magnitude (J) 7.470
Apparent magnitude (H) 7.160
Apparent magnitude (K) 7.060
B−V color index 1.2
Variable type none
Astrometry
Proper motion (μ) RA: −149.881±0.078[1] mas/yr
Dec.: −145.915±0.062[1] mas/yr
Parallax (π)13.6519 ± 0.0454[1] mas
Distance238.9 ± 0.8 ly
(73.2 ± 0.2 pc)
Absolute magnitude (MV)4.5
Details
Mass1.145 M
Radius1.09 R
Luminosity1.21 L
Surface gravity (log g)4.39 cgs
Temperature5585 K
Metallicity+0.56
Rotation~99 days
Rotational velocity (v sin i)2.0 ± 0.5 km/s
Age7.2 ± 2.0 Gyr
Other designations
BD–04°3690, G 124-40, HIP 70623, LTT 5698, NLTT 37355, PPM 197558, SAO 139932
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia
data

See also

References

  1. 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.
  2. 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.
  3. Deacon, Niall R.; et al. (2014). "Wide Cool and Ultracool Companions to Nearby Stars from Pan-STARRS 1". The Astrophysical Journal. 792 (2). 119. arXiv:1407.2938. Bibcode:2014ApJ...792..119D. doi:10.1088/0004-637X/792/2/119. S2CID 38354181.


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