HD 152079
{{Short description|Star in the constellation Ara}}
{{Starbox begin
| name = HD 152079
}}
{{Starbox observe
| epoch = J2000.0
| constell = Ara
}}
{{Starbox character
| type =
| appmag_1_passband = B
| appmag_2_passband = J
| appmag_3_passband = H
| appmag_4_passband = K
| r-i =
| v-r =
| u-b =
| variable =
}}
{{Starbox astrometry
| radial_v = −21.338{{±|0.0007}}
| prop_mo_ra = −107.358
| prop_mo_dec = −93.597
| parallax = 11.3545
| p_error = 0.0142
}}
{{Starbox detail
| age_gyr = {{val|6.2|u=Gyr}}
1.622{{±|1.369}}
| rotation =
}}
{{Starbox catalog
| names = {{odlist | CD=–46°11085 | HIP=82632 | PPM=322323 | SAO=227350 }}
}}
{{Starbox reference
| Simbad = HD+152079
| NSTED = HD+152079
| EPE = HD+152079
}}
{{Starbox end}}
HD 152079 is a star with an orbiting exoplanet in the southern constellation of Ara. It is located at a distance of 287 light years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −21 km/s. At that distance the star is much too faint to be visible with the naked eye, having an apparent visual magnitude of 9.18.
This is a G-type main-sequence star with a stellar classification of G6V. Age estimates range from 1.6 to 6.2 billion years. It has 1.15 times the mass of the Sun and 1.13 times the Sun's girth. This is a metal-rich star, having a higher iron abundance than in the Sun. The star is radiating 1.44 times the luminosity of the Sun from its photosphere at an effective temperature of 5,907 K.
Planetary system
It has one confirmed exoplanet, discovered in 2010 by the Magellan Planet Search Program. This is a super-jovian object with an eccentric orbit and a {{cvt|2918|days|years|1|disp=out|abbr=off}} orbital period. In 2018, an analysis of HARPS data suggested the presence of an additional outer companion with a mass at least 83% of the mass of Jupiter.
{{OrbitboxPlanet begin
}}
{{OrbitboxPlanet
| exoplanet = b
| mass = ≥ 2.661{{±|0.046}}
| period = 2,918.92{{±|37.87|39.28}}
| semimajor = 4.187{{±|0.051|0.053}}
| eccentricity = 0.532{{±|0.015|0.016}}
}}
{{Orbitbox end}}
References
{{reflist|refs=
| title=HD 152079 | access-date=2023-12-27 }}
{{Cite Gaia DR3|5939949051801737472}}
| title=Gaia Data Release 2. The catalogue of radial velocity standard stars
| last1=Soubiran | first1=C. | last2=Jasniewicz | first2=G.
| last3=Chemin | first3=L. | last4=Zurbach | first4=C.
| last5=Brouillet | first5=N. | last6=Panuzzo | first6=P.
| last7=Sartoretti | first7=P. | last8=Katz | first8=D.
| last9=Le Campion | first9=J. -F. | last10=Marchal | first10=O.
| last11=Hestroffer | first11=D. | last12=Thévenin | first12=F.
| last13=Crifo | first13=F. | last14=Udry | first14=S.
| last15=Cropper | first15=M. | last16=Seabroke | first16=G.
| last17=Viala | first17=Y. | last18=Benson | first18=K.
| last19=Blomme | first19=R. | last20=Jean-Antoine | first20=A.
| last21=Huckle | first21=H. | last22=Smith | first22=M.
| last23=Baker | first23=S. G. | last24=Damerdji | first24=Y.
| last25=Dolding | first25=C. | last26=Frémat | first26=Y.
| last27=Gosset | first27=E. | last28=Guerrier | first28=A.
| last29=Guy | first29=L. P. | last30=Haigron | first30=R.
| display-authors=1 | journal=Astronomy and Astrophysics
| volume=616 | pages=A7 | year=2018
| bibcode=2018A&A...616A...7S | arxiv=1804.09370
| doi=10.1051/0004-6361/201832795 | s2cid=52952408 }}
| 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 | arxiv=1108.4971
| doi=10.1134/S1063773712050015 | s2cid=119257644 }}
| title=Five Long-period Extrasolar Planets in Eccentric orbits from the Magellan Planet Search Program
| last1=Arriagada | first1=Pamela | last2=Butler | first2=R. Paul
| last3=Minniti | first3=Dante | last4=López-Morales | first4=Mercedes
| last5=Shectman | first5=Stephen A. | last6=Adams | first6=Fred C.
| last7=Boss | first7=Alan P. | last8=Chambers | first8=John E.
| display-authors=1 | journal=The Astrophysical Journal
| volume=711 | issue=2 | pages=1229–35 | date=2010
| arxiv=1001.4093 | bibcode=2010ApJ...711.1229A
| doi=10.1088/0004-637X/711/2/1229 | s2cid=118682009 }}
| title=Masses, oxygen, and carbon abundances in CHEPS dwarf stars
| last1=Pavlenko | first1=Y. V. | last2=Kaminsky | first2=B. M.
| last3=Jenkins | first3=J. S. | last4=Ivanyuk | first4=O. M.
| last5=Jones | first5=H. R. A. | last6=Lyubchik | first6=Y. P.
| display-authors=1 | journal=Astronomy & Astrophysics
| volume=621 | pages=A112 | year=2019
| arxiv=1811.05011 | doi=10.1051/0004-6361/201834138
| bibcode=2019A&A...621A.112P | s2cid=119103484 }}
| title=Exploring the realm of scaled solar system analogues with HARPS
| display-authors=1 | last1=Barbato | first1=D.
| last2=Sozzetti | first2=A. | last3=Desidera | first3=S.
| last4=Damasso | first4=M. | last5=Bonomo | first5=A. S.
| last6=Giacobbe | first6=P. | last7=Colombo | first7=L. S.
| last8=Lazzoni | first8=C. | last9=Claudi | first9=R.
| last10=Gratton | first10=R. | last11=LoCurto | first11=G.
| last12=Marzari | first12=F. | last13=Mordasini | first13=C.
| journal=Astronomy & Astrophysics
| volume=615 | id=A175 | pages=21 | date=August 2018
| arxiv=1804.08329 | bibcode=2018A&A...615A.175B
| doi=10.1051/0004-6361/201832791 | s2cid=119099721 }}
| title=Michigan Catalogue of two dimensional spectral types for the HD stars
| last=Houk | first=N.
| journal=Michigan Spectral Survey
| volume=2 | date=1978 | bibcode=1978mcts.book.....H }}
}}
{{Sky|16|53|29.74|-|46|19|58.6|278}}
{{Stars of Ara}}
{{DEFAULTSORT:HD 152079}}
Category:G-type main-sequence stars