# HD 114729

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Star in the constellation Centaurus

HD 114729 Observation data Epoch J2000 Equinox J2000 Constellation Centaurus[1] Right ascension 13h 12m 44.259s[2] Declination −31° 52′ 24.06″[2] Apparent magnitude (V) 6.68[1] Characteristics Evolutionary stage main sequence[3] Spectral type G0 V[4] B−V color index 0.591±0.008[1] Astrometry Radial velocity (Rv) 26.3378±0.0187[5] km/s Proper motion (μ) RA: −199.927 mas/yr[2] Dec.: −308.130 mas/yr[2] Parallax (π) 26.3378±0.0187 mas[2] Distance 123.84 ± 0.09 ly (37.97 ± 0.03 pc) Absolute magnitude (MV) 3.89[1] Details[6] HD 114729 A Mass 0.97±0.01 M☉ Radius 1.44±0.03 R☉ Luminosity 2.33±0.02 L☉ Surface gravity (log g) 4.10±0.02 cgs Temperature 5,939±58 K Metallicity [Fe/H] −0.220[7] dex Age 9.30±0.60 Gyr HD 114729 B Mass 0.253±0.011[8] M☉ Other designations CD−31°10156, HD 114729, HIP 64459, SAO 204237, WDS J13127-3152A[9] Database references SIMBAD data

**HD 114729** is a Sun-like [star](/source/Star) with an orbiting [exoplanet](/source/Exoplanet) in the southern [constellation](/source/Constellation) of [Centaurus](/source/Centaurus). Based on [parallax](/source/Stellar_parallax) measurements, it is located at a distance of 124 [light years](/source/Light_years) from the Sun. It is near the lower limit of visibility to the naked eye, having an [apparent visual magnitude](/source/Apparent_visual_magnitude) of 6.68[1] The system is drifting further away with a heliocentric [radial velocity](/source/Radial_velocity) of 26.3 km/s.[5] The system has a relatively high [proper motion](/source/Proper_motion), traversing the [celestial sphere](/source/Celestial_sphere) at an [angular rate](/source/Angular_rate) of 0.373[″](/source/Second_of_arc)·yr−1.[10]

The [spectrum](/source/Stellar_spectrum) of HD 114729 presents as an ordinary [G-type main-sequence star](/source/G-type_main-sequence_star), a yellow dwarf, with a [stellar classification](/source/Stellar_classification) of G0 V.[4] It has a negligible level of [magnetic activity](/source/Magnetic_activity), making it [chromosperically](/source/Chromosphere) quiet.[3] The star has about the same mass as the Sun, but the radius has expanded to 44% greater than the Sun's girth. It is radiating more than double the luminosity of the Sun from its [photosphere](/source/Photosphere) at an [effective temperature](/source/Effective_temperature) of 5,939 K. The size and luminosity suggest a much greater age than the Sun; perhaps around nine billion years.[6]

HD 114729 has a co-moving companion designated HD 114729 B, with the latter having 25.3% of the [Sun's mass](/source/Solar_mass) and a [projected separation](/source/Projected_separation) of 282±10 [AU](/source/Astronomical_unit).[8]

## Planetary system

In 2003 the [California and Carnegie Planet Search](/source/California_and_Carnegie_Planet_Search) team announced the discovery of a [planet](/source/Planet) orbiting the star.[3] This planet orbits twice as far away from the star as Earth to the Sun and orbits very eccentrically. It has [mass](/source/Mass) at least 95% (0.840) that of [Jupiter](/source/Jupiter) and thus a minimum of 267 times the mass of [Earth](/source/Earth).

The HD 114729 planetary system[11] Companion (in order from star) Mass Semimajor axis (AU) Orbital period (days) Eccentricity Inclination (°) Radius b >0.95±0.10 MJ 2.11±0.12 1114±15 0.167±0.055 — —

## See also

- [List of extrasolar planets](/source/List_of_extrasolar_planets)

## References

1. ^ [***a***](#cite_ref-Anderson2012_1-0) [***b***](#cite_ref-Anderson2012_1-1) [***c***](#cite_ref-Anderson2012_1-2) [***d***](#cite_ref-Anderson2012_1-3) [***e***](#cite_ref-Anderson2012_1-4) Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". *[Astronomy Letters](/source/Astronomy_Letters)*. **38** (5): 331. [arXiv](/source/ArXiv_(identifier)):[1108.4971](https://arxiv.org/abs/1108.4971). [Bibcode](/source/Bibcode_(identifier)):[2012AstL...38..331A](https://ui.adsabs.harvard.edu/abs/2012AstL...38..331A). [doi](/source/Doi_(identifier)):[10.1134/S1063773712050015](https://doi.org/10.1134%2FS1063773712050015). [XHIP record for this object](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-ref=VIZ681510a8389ecb&-out.src=V%2F137D%2FXHIP&-nav=cat%3AV%2F137D%26tab%3A{V%2F137D%2FXHIP}%26key%3Asource%3DV%2F137D%2FXHIP%26HTTPPRM%3A&-source=V%2F137D%2FXHIP&-out=HIP&HIP=64459&-out=Comp&-out=Gr&-out=RAJ2000&-out=DEJ2000&-out=Dist&-out=X&-out=Y&-out=Z&-out=SpType&-out=Simbad&-out=Hpmag&-out=Lum&-out=Cst) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-GaiaDR3_2-0) [***b***](#cite_ref-GaiaDR3_2-1) [***c***](#cite_ref-GaiaDR3_2-2) [***d***](#cite_ref-GaiaDR3_2-3) Vallenari, A.; et al. (Gaia collaboration) (2023). ["*Gaia* Data Release 3. Summary of the content and survey properties"](https://doi.org/10.1051%2F0004-6361%2F202243940). *Astronomy and Astrophysics*. **674**: A1. [arXiv](/source/ArXiv_(identifier)):[2208.00211](https://arxiv.org/abs/2208.00211). [Bibcode](/source/Bibcode_(identifier)):[2023A&A...674A...1G](https://ui.adsabs.harvard.edu/abs/2023A&A...674A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202243940](https://doi.org/10.1051%2F0004-6361%2F202243940). [S2CID](/source/S2CID_(identifier)) [244398875](https://api.semanticscholar.org/CorpusID:244398875). [Gaia DR3 record for this source](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-source=+I%2F355&-from=nav&-nav=cat%3AI%2F355%26tab%3A%7BI%2F355%2Fgaiadr3%7D%26key%3Asource%3D1355%2Fgaiadr3%26HTTPPRM%3A%26-out.add%3D.%26Source%3D%3D%3D6180035765135232128%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-Butler2003_3-0) [***b***](#cite_ref-Butler2003_3-1) [***c***](#cite_ref-Butler2003_3-2) Butler, R. Paul; et al. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". *The Astrophysical Journal*. **582** (1): 455–466. [Bibcode](/source/Bibcode_(identifier)):[2003ApJ...582..455B](https://ui.adsabs.harvard.edu/abs/2003ApJ...582..455B). [CiteSeerX](/source/CiteSeerX_(identifier)) [10.1.1.7.6988](https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.7.6988). [doi](/source/Doi_(identifier)):[10.1086/344570](https://doi.org/10.1086%2F344570). [S2CID](/source/S2CID_(identifier)) [17608922](https://api.semanticscholar.org/CorpusID:17608922).

1. ^ [***a***](#cite_ref-Gray2006_4-0) [***b***](#cite_ref-Gray2006_4-1) Gray, R. O.; et al. (July 2006). "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample". *[The Astronomical Journal](/source/The_Astronomical_Journal)*. **132** (1): 161–170. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0603770](https://arxiv.org/abs/astro-ph/0603770). [Bibcode](/source/Bibcode_(identifier)):[2006AJ....132..161G](https://ui.adsabs.harvard.edu/abs/2006AJ....132..161G). [doi](/source/Doi_(identifier)):[10.1086/504637](https://doi.org/10.1086%2F504637). [S2CID](/source/S2CID_(identifier)) [119476992](https://api.semanticscholar.org/CorpusID:119476992).

1. ^ [***a***](#cite_ref-Soubiran_et_al_2018_5-0) [***b***](#cite_ref-Soubiran_et_al_2018_5-1) Soubiran, C.; et al. (2018). "Gaia Data Release 2. The catalogue of radial velocity standard stars". *Astronomy and Astrophysics*. **616**: A7. [arXiv](/source/ArXiv_(identifier)):[1804.09370](https://arxiv.org/abs/1804.09370). [Bibcode](/source/Bibcode_(identifier)):[2018A&A...616A...7S](https://ui.adsabs.harvard.edu/abs/2018A&A...616A...7S). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201832795](https://doi.org/10.1051%2F0004-6361%2F201832795). [S2CID](/source/S2CID_(identifier)) [52952408](https://api.semanticscholar.org/CorpusID:52952408).

1. ^ [***a***](#cite_ref-Bonfanti2016_6-0) [***b***](#cite_ref-Bonfanti2016_6-1) Bonfanti, A.; et al. (2016). "Age consistency between exoplanet hosts and field stars". *Astronomy & Astrophysics*. **585**: A5. [arXiv](/source/ArXiv_(identifier)):[1511.01744](https://arxiv.org/abs/1511.01744). [Bibcode](/source/Bibcode_(identifier)):[2016A&A...585A...5B](https://ui.adsabs.harvard.edu/abs/2016A&A...585A...5B). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201527297](https://doi.org/10.1051%2F0004-6361%2F201527297). [S2CID](/source/S2CID_(identifier)) [53971692](https://api.semanticscholar.org/CorpusID:53971692).

1. **[^](#cite_ref-open_7-0)** Barry, Don C.; et al. (2016). "HD 114729". *Open Oxoplanet Catalogue*. **315**: 264. [Bibcode](/source/Bibcode_(identifier)):[1987ApJ...315..264B](https://ui.adsabs.harvard.edu/abs/1987ApJ...315..264B). [doi](/source/Doi_(identifier)):[10.1086/165131](https://doi.org/10.1086%2F165131).

1. ^ [***a***](#cite_ref-Mugrauer2005_8-0) [***b***](#cite_ref-Mugrauer2005_8-1) Mugrauer, M.; et al. (September 2005). "Four new wide binaries among exoplanet host stars". *Astronomy and Astrophysics*. **440** (3): 1051−1060. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0507101](https://arxiv.org/abs/astro-ph/0507101). [Bibcode](/source/Bibcode_(identifier)):[2005A&A...440.1051M](https://ui.adsabs.harvard.edu/abs/2005A&A...440.1051M). [doi](/source/Doi_(identifier)):[10.1051/0004-6361:20042297](https://doi.org/10.1051%2F0004-6361%3A20042297). [S2CID](/source/S2CID_(identifier)) [14065040](https://api.semanticscholar.org/CorpusID:14065040).

1. **[^](#cite_ref-SIMBAD_9-0)** ["HD 114729"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+114729). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 2018-06-25.

1. **[^](#cite_ref-Luyten1995_10-0)** Luyten, W. J. (June 1995). "NLTT Catalogue (Luyten, 1979)". *VizieR Online Data Catalog*. [Bibcode](/source/Bibcode_(identifier)):[1995yCat.1098....0L](https://ui.adsabs.harvard.edu/abs/1995yCat.1098....0L).

1. **[^](#cite_ref-Butler2006_11-0)** Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". *The Astrophysical Journal*. **646** (1): 505–522. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0607493](https://arxiv.org/abs/astro-ph/0607493). [Bibcode](/source/Bibcode_(identifier)):[2006ApJ...646..505B](https://ui.adsabs.harvard.edu/abs/2006ApJ...646..505B). [doi](/source/Doi_(identifier)):[10.1086/504701](https://doi.org/10.1086%2F504701). [hdl](/source/Hdl_(identifier)):[2299/1103](https://hdl.handle.net/2299%2F1103). [S2CID](/source/S2CID_(identifier)) [119067572](https://api.semanticscholar.org/CorpusID:119067572).

## External links

- ["HD 114729"](https://web.archive.org/web/20071106054210/http://exoplanet.eu/star.php?st=HD+114729). *[Extrasolar Planets Encyclopaedia](/source/Extrasolar_Planets_Encyclopaedia)*. Archived from [the original](http://exoplanet.eu/star.php?st=HD+114729) on November 6, 2007.

v t e Constellation of Centaurus List of stars in Centaurus Centaurus in Chinese astronomy Stars Bayer α A (Rigil Kentaurus) B (Toliman) C (Proxima Centauri) β (Hadar) γ δ ε ζ (Leepwal) η θ (Menkent) ι (Kulou) κ λ μ ν (Heng) ξ1 ξ2 ο1 ο2 π ρ σ τ υ1 υ2 φ χ ψ x1 x2 C3 D E F G H J K M N Q Flamsteed 1 (i) 2 (g) 3 (k) 4 (h) Variable R T V Y RR SV SX BV DY UY V346 V553 V744 V752 V761 (a) V763 (C1) V766 V779 (Krzemiński's star) V803 V810 V816 (Przybylski's Star) V831 V842 V885 V886 V863 V1032 V1369 V1400 V1935 HR 4460 (A) 4466 (C2) 4499 4522 4523 4537 (j) 4546 (B) 4721 4748 (u) 4796 4817 (l) 4831 (w) 4874 (p) 4888 (e) 4889 (n) 4940 (f) 4979 4989 5006 (r) 5041 (m) 5089 (d) 5174 (z) 5222 (y) 5224 5241 5297 5358 (v) 5371 5471 (b) 5485 (c1) 5489 (c2) HD 97413 98176 100453 101581 101930 102117 (Uklun) 103197 107914 108236 109749 110113 113538 113766 114386 114729 115600 116434 (Matza) 117207 117618 (Dofida) 117939 120411 121228 121504 124448 (Popper's Star) 125072 125595 131399 Other 2MASS J1126−5003 2M1207 Gaia BH2 HD 131399 Ab PSR B1259−63 PSR J1311−3430 TOI-763 WASP-15 (Nyamien) WASP-41 WASP-42 WASP-167/KELT-13 Exoplanets 2M1207b b Centauri b HD 101930 b HD 102117 b (Leklsullun) HD 103197 b HD 109749 b HD 113538 b c HD 114386 b HD 114729 b HD 117207 b HD 117618 b (Noifasui) HD 121504 b HIP 65426 b (Najsakopajk) HIP 67522 b NGTS-13b Proxima Centauri b c d WASP-15b (Asye) Star clusters NGC 3766 4230 4507 5281 5286 5316 5460 5617 5662 Other IC 2944 ω Centauri Scorpius–Centaurus association Stock 16 Nebulae NGC 3918 5307 Other Boomerang Nebula Fleming 1 G292.0+1.8 G306.3-0.9 Gum 41 IC 2944 IRAS 13208−6020 RCW 79 RCW 86 Southern Crab Nebula SuWt 2 Galaxies NGC 3557 3568 3749 3783 4444 4603 4622 4650A 4683 4696 4706 4709 4729 4730 4743 4744 4909 4930 4945 4976 5011 A 5026 5064 5082 5090 5091 5102 5114 5121 5128 (Centaurus A) 5161 5206 5253 5266 5291 5398 5408 5419 5483 5516 Other ESO 269-57 ESO 325-4 ESO 383-76 ESO 444-46 Fourcade-Figueroa Object IC 3370 IC 4214 IC 4329A IRAS 13224−3809 J1144−4308 LEDA 677373 PKS 1144−379 PKS 1353−341 PKS 1424−418 Galaxy clusters Abell S740 Centaurus Cluster Shapley Supercluster Astronomical events GW190521 SN 185 SN 1895B (Z) SN 1972E SN 1986G J1407b SN 2019so Category

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Adapted from the Wikipedia article [HD 114729](https://en.wikipedia.org/wiki/HD_114729) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/HD_114729?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.