- Planetary system
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{{Starbox begin
| name = HD 114729
}}{{Starbox observe
| epoch=J2000
| ra={{RA|13|12|44.25696}}[1]
| dec={{DEC|–31|52|24.0555}}[1]
| appmag_v=6.68[3]
| constell=Centaurus
}}{{Starbox character
| class = G0 V[4]
| b-v = {{Val|0.591|0.008}}[3]
| u-b =
}}{{Starbox astrometry
| prop_mo_ra = −202.87[1]
| prop_mo_dec = −308.32[1]
| parallax = 27.69
| p_error = 0.54
| parallax_footnote = [1]
| absmag_v = 3.89[3]
}}{{Starbox detail
| source = [10]
| component1 = HD 114729 A
| mass = {{Val|0.97|0.01}}
| radius = {{Val|1.44|0.03}}
| luminosity = {{Val|2.33|0.02}}
| gravity = {{Val|4.10|0.02}}
| temperature = {{Val|5939|58|fmt=commas}}
| metal_fe = −0.220[11]
| age_gyr = {{Val|9.30|0.60}}
| component2 = HD 114729 B
| mass2 = {{Val|0.253|0.011}}[12]
}}{{Starbox catalog
| names = {{odlist | CD=−31° 10156 | FK5= | HD=114729 | HIP=64459 | HR= | SAO=204237 | WDS=J13127-3152A }}
}}{{Starbox reference
| Simbad = HD+114729
| EPE =
| ARICNS =
}}{{Starbox end}}HD 114729 is a 7th magnitude star approximately {{Convert|36.1|pc|ly|abbr=on|order=flip}} away in the constellation of Centaurus. Like our Sun (G2V), it is a yellow dwarf (spectral type G0V). It is about the same mass as the Sun, but twice as luminous. That indicates a much greater age, perhaps over 10 billion years. HD 114729 has a co-moving companion designated HD 114729 B, with the latter having 25.3% of the Sun's mass and a projected separation of {{Val|282|10|ul=AU}}.[12]Planetary systemIn 2003 the California and Carnegie Planet Search team announced the discovery of a planet orbiting the star.[15] This planet orbits twice as far away from the star as Earth to the Sun and orbits very eccentrically. It has mass at least 95% (0.840) that of Jupiter and thus a minimum of 267 times the mass of Earth. {{OrbitboxPlanet begin
| table_ref = [16]
}}{{OrbitboxPlanet
| exoplanet = b
| mass = >0.95 ± 0.10
| period = 1114 ± 15
| semimajor = 2.11 ± 0.12
| eccentricity = 0.167 ± 0.055
}}{{Orbitbox end}} See also - List of extrasolar planets
References1. ^1 2 3 4 5 {{citation | title=Validation of the new Hipparcos reduction | last1=van Leeuwen | first1=F. | postscript=. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}
2. ^1 2 {{cite journal | title=Four new wide binaries among exoplanet host stars | last1=Mugrauer | first1=M. | last2=Neuhäuser | first2=R. | last3=Seifahrt | first3=A. | last4=Mazeh | first4=T. | last5=Guenther | first5=E. | journal=Astronomy and Astrophysics | volume=440 | issue=3 | pages=1051−1060 | date=September 2005 | doi=10.1051/0004-6361:20042297 | bibcode=2005A&A...440.1051M | arxiv=astro-ph/0507101 }}
3. ^1 2 3 {{cite journal | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 }}
4. ^1 {{cite journal | last1=Gray | first1=R.O.| last2=Corbally | first2=C.J.| last3=Garrison | first3=R.F.| last4=McFadden | first4=M.T. | last5=Bubar | first5=E.J. | last6=McGahee | first6=C.E.| last7=O'Donoghue | first7=A.A.| last8=Knox | first8=E.R.| title=Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample | journal=The Astronomical Journal | volume=132 | issue=1 | pages=161–170 | date=July 2006 | doi=10.1086/504637 | bibcode=2006AJ....132..161G | arxiv=astro-ph/0603770}}
5. ^1 {{cite journal | title=Age consistency between exoplanet hosts and field stars | last1=Bonfanti | first1=A. | last2=Ortolani | first2=S. | last3=Nascimbeni | first3=V. | journal=Astronomy & Astrophysics | year=2016 | volume=585 | pages=A5, 14 pp. | arxiv=1511.01744 | bibcode=2016A&A...585A...5B | doi=10.1051/0004-6361/201527297 }}
6. ^1 {{cite journal | url=http://www.iop.org/EJ/article/0004-637X/582/1/455/56131.html | title=Seven New Keck Planets Orbiting G and K Dwarfs | last1=Butler | first1=R. Paul | last2=Marcy | first2=Geoffrey W. | last3=Vogt | first3=Steven S. | last4=Fischer | first4=Debra A. | last5=Henry | first5=Gregory W. | last6=Laughlin | first6=Gregory | last7=Wright | first7=Jason T. | display-authors=1 | journal=The Astrophysical Journal | date=2003 | volume=582 | issue=1 | pages=455–466 | doi=10.1086/344570 | bibcode=2003ApJ...582..455B | citeseerx=10.1.1.7.6988 }}
7. ^1 {{cite journal | url=http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html | title=Catalog of Nearby Exoplanets | last1=Butler | first1=R. P. | last2=Wright | first2=J. T. | last3=Marcy | first3=G. W. | last4=Fischer | first4=D. A. | last5=Vogt | first5=S. S. | last6=Tinney | first6=C. G. | last7=Jones | first7=H. R. A. | last8=Carter | first8=B. D. | last9=Johnson | first9=J. A. | display-authors=1 | journal=The Astrophysical Journal | volume=646 | issue=1 | pages=505–522 | date=2006 | doi=10.1086/504701 | bibcode=2006ApJ...646..505B | arxiv=astro-ph/0607493 }}
8. ^1 {{citation | last1= | first1= | title=HD 114729 | journal=Open Oxoplanet Catalogue | volume= |date=2016 | doi=10.1086/165131 |url=http://www.openexoplanetcatalogue.com/planet/HD%20114729%20A%20b/ |bibcode = 1987ApJ...315..264B }}
}}External links- {{cite web |url=http://exoplanet.eu/star.php?st=HD+114729 |title=HD 114729 |work=The Extrasolar Planets Encyclopaedia}}
{{Sky|13|12|44.2575|-|31|52|24.056|114.1}}{{Stars of Centaurus}} 6 : G-type main-sequence stars|Planetary systems|Centaurus (constellation)|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects |