View source for WASP-58

{{Short description|High proper motion star in the constellation Lyra}}
{{Starbox begin
| name = WASP-58
}}
{{Starbox observe
| epoch = J2000
| ra = {{RA|18|18|48.2531}}<ref name=dr2/>
| dec = {{DEC|45|10|19.2592}}<ref name=dr2/>
| constell = [[Lyra (constellation)|Lyra]]
| appmag_v = 11.66<ref name=Hebrard2012/>
}}
{{Starbox character
| type=[[Main sequence]]
| class = G2V<ref name=Hebrard2012/>
}}
{{Starbox astrometry
| radial_v =-28.708<ref name=dr2/>
| prop_mo_ra =32.579<ref name=dr2/>
| prop_mo_dec = 47.140<ref name=dr2/>
| parallax = 3.4147
| p_error = 0.0214
| parallax_footnote = <ref name=dr2>{{cite DR2|2115245554756763392}}</ref>
}}
{{Starbox orbit
| reference = <ref name=Ngo2016>{{citation|arxiv=1606.07102|title=FRIENDS OF HOT JUPITERS. IV. STELLAR COMPANIONS BEYOND 50 au MIGHT FACILITATE GIANT PLANET FORMATION, BUT MOST ARE UNLIKELY TO CAUSE KOZAI–LIDOV MIGRATION|year=2016|doi=10.3847/0004-637X/827/1/8|last1=Ngo|first1=Henry|last2=Knutson|first2=Heather A.|last3=Hinkley|first3=Sasha|last4=Bryan|first4=Marta|last5=Crepp|first5=Justin R.|last6=Batygin|first6=Konstantin|last7=Crossfield|first7=Ian|last8=Hansen|first8=Brad|last9=Howard|first9=Andrew W.|last10=Johnson|first10=John A.|last11=Mawet|first11=Dimitri|last12=Morton|first12=Timothy D.|last13=Muirhead|first13=Philip S.|last14=Wang|first14=Ji|journal=The Astrophysical Journal|volume=827|issue=1|page=8|bibcode=2016ApJ...827....8N|s2cid=41083068 |doi-access=free }}</ref>
| primary = WASP-58A
| name = WASP-58B
| period = <!--Period (in years)-->
| period_unitless = <!--Period (no units provided by template)-->
| axis = 1.281{{±|0.002}}
| axis_unitless = 384{{±|64}} [[astronomical unit|AU]]
| eccentricity = <!--Eccentricity-->
| inclination = <!--Inclination (in degrees)-->
| node = <!--Longitude of node (in degrees)-->
| periastron = <!--Periastron epoch-->
| periarg = <!--Argument of periastron (in degrees), secondary -->
| periarg_primary = <!--Argument of periastron (in degrees), primary -->
| k1 = <!-- Velocity semi-amplitude (SB1, or primary in SB2), in km/s -->
| k2 = <!-- Velocity semi-amplitude (secondary in SB2), in km/s -->
}}
{{Starbox detail
|component1=WASP-58A
|component2=WASP-58B
| source = <ref name=Bonomo2017/>
| mass =  0.940{{±|0.100}}
| radius = 1.17{{±|0.13}}
| gravity = 4.23{{±|0.1}}<ref name=Andreasen2017/>
| luminosity =
| temperature = 6039{{±|55}}<ref name=Andreasen2017>{{citation|arxiv=1703.06671|title=SWEET-Cat update and FASMA|year=2017|doi=10.1051/0004-6361/201629967|last1=Andreasen|first1=D. T.|last2=Sousa|first2=S. G.|last3=Tsantaki|first3=M.|last4=Teixeira|first4=G. D. C.|last5=Mortier|first5=A.|last6=Santos|first6=N. C.|last7=Suárez-Andrés|first7=L.|last8=Delgado-Mena|first8=E.|last9=Ferreira|first9=A. C. S.|journal=Astronomy & Astrophysics|volume=600|pages=A69|bibcode=2017A&A...600A..69A |s2cid=119534579}}</ref>
|temperature2= 3396{{±|53}}<ref name=Ngo2016/>
| metal_fe = -0.09{{±|0.04}}
| rotation = 22.6{{±|11.7|6.1}} [[day|d]]<ref>{{citation|arxiv=1406.4402|title=Discrepancies between isochrone fitting and gyrochronology for exoplanet host stars?|year=2014|doi=10.1093/mnras/stu950|last1=Brown|first1=D. J. A.|journal=Monthly Notices of the Royal Astronomical Society|volume=442|issue=2|pages=1844–1862|doi-access=free |bibcode=2014MNRAS.442.1844B }}</ref>
| rotational_velocity =2.8{{±|0.9}}
| age_gyr =  12.80{{±|0.20|2.10}}
}}
{{Starbox catalog
| names = {{odlist|TYC=3525-76-1|2MASS=J18184825+4510192|Gaia DR2=2115245554756763392}}<ref name=simbad/>
}}
{{Starbox reference
| Simbad = WASP-58
}}
{{Starbox end}}
'''WASP-58''' is a [[binary star]] system comprising a [[G-type main-sequence star]] and a red dwarf about 955 light-years away. WASP-58 is slightly depleted in heavy elements, having 80% of the solar abundance of iron.<ref name=Andreasen2017/> '''WASP-58''' is much older than the Sun at 12.80{{±|0.20|2.10}} billion years.<ref name=Bonomo2017/>
[[Lithium]] was detected in the stellar spectrum of WASP-58A, making the star anomalous for its advanced age.<ref name=Hebrard2012/>
A multiplicity survey in 2015 did detect a [[red dwarf]] stellar companion<ref>{{citation|arxiv=1507.01938|title=A Lucky Imaging search for stellar companions to transiting planet host stars|year=2015|doi=10.1051/0004-6361/201424091|last1=Wöllert|first1=Maria|last2=Brandner|first2=Wolfgang|last3=Bergfors|first3=Carolina|last4=Henning|first4=Thomas|journal=Astronomy & Astrophysics|volume=575|pages=A23|bibcode=2015A&A...575A..23W|s2cid=119250579}}</ref> at a projected separation of 1.281{{±|0.002}}″  to WASP-58A, and it was confirmed to be gravitationally bound in 2016.<ref name=Ngo2016/>
==Planetary system==
In 2012 a [[Transit (astronomy)|transiting]] [[hot Jupiter]] planet [[WASP-58b|b]] was detected on a tight, circular orbit around the primary star WASP-58A.<ref name=Hebrard2012>{{citation|arxiv=1211.0810|title=WASP-52b, WASP-58b, WASP-59b, and WASP-60b: Four new transiting close-in giant planets|year=2012|doi=10.1051/0004-6361/201220363|last1=Hébrard|first1=G.|last2=Collier Cameron|first2=A.|last3=Brown|first3=D. J. A.|last4=Díaz|first4=R. F.|last5=Faedi|first5=F.|last6=Smalley|first6=B.|last7=Anderson|first7=D. R.|last8=Armstrong|first8=D.|last9=Barros|first9=S. C. C.|last10=Bento|first10=J.|last11=Bouchy|first11=F.|last12=Doyle|first12=A. P.|last13=Enoch|first13=B.|last14=Gómez Maqueo Chew|first14=Y.|last15=Hébrard|first15=É. M.|last16=Hellier|first16=C.|last17=Lendl|first17=M.|last18=Lister|first18=T. A.|last19=Maxted|first19=P. F. L.|last20=McCormac|first20=J.|last21=Moutou|first21=C.|last22=Pollacco|first22=D.|last23=Queloz|first23=D.|last24=Santerne|first24=A.|last25=Skillen|first25=I.|last26=Southworth|first26=J.|last27=Tregloan-Reed|first27=J.|last28=Triaud|first28=A. H. M. J.|last29=Udry|first29=S.|last30=Vanhuysse|first30=M.|journal=Astronomy & Astrophysics|volume=549|pages=A134|s2cid=54502046|display-authors=1}}</ref>
Planetary equilibrium temperature is {{val|1270|80|ul=K}}.<ref name=Hebrard2012/>
{{OrbitboxPlanet begin
| name = WASP-58
| table_ref =<ref name=Bonomo2017>{{citation|arxiv=1704.00373|title=The GAPS Programme with HARPS-N at TNG|year=2017|doi=10.1051/0004-6361/201629882|last1=Bonomo|first1=A. S.|last2=Desidera|first2=S.|last3=Benatti|first3=S.|last4=Borsa|first4=F.|last5=Crespi|first5=S.|last6=Damasso|first6=M.|last7=Lanza|first7=A. F.|last8=Sozzetti|first8=A.|last9=Lodato|first9=G.|last10=Marzari|first10=F.|last11=Boccato|first11=C.|last12=Claudi|first12=R. U.|last13=Cosentino|first13=R.|last14=Covino|first14=E.|last15=Gratton|first15=R.|last16=Maggio|first16=A.|last17=Micela|first17=G.|last18=Molinari|first18=E.|last19=Pagano|first19=I.|last20=Piotto|first20=G.|last21=Poretti|first21=E.|last22=Smareglia|first22=R.|last23=Affer|first23=L.|last24=Biazzo|first24=K.|last25=Bignamini|first25=A.|last26=Esposito|first26=M.|last27=Giacobbe|first27=P.|last28=Hébrard|first28=G.|last29=Malavolta|first29=L.|last30=Maldonado|first30=J.|journal=Astronomy & Astrophysics|volume=602|pages=A107|bibcode=2017A&A...602A.107B |s2cid=118923163|display-authors=1}}</ref>
}}
{{OrbitboxPlanet
| exoplanet = [[WASP-58b|b]]
| mass =  0.899{{±|0.074|0.072}}
| radius =  1.37{{±|0.2}}
| semimajor = 0.0562{{±|0.0019|0.0020}}
| period =  5.017180{{±|0.000011}}
| eccentricity =  <0.044
| inclination = 87.4{{±|1.5}}
}}
{{Orbitbox end}}
==References==
{{Reflist|refs=
<ref name=simbad>{{cite simbad |title=WASP-58}}</ref>
}}
{{Sky|23|18|29.5475|+|24|53|21.4364}}
{{Lyra}}
[[Category:Lyra]]
[[Category:Solar analogs]]
[[Category:G-type main-sequence stars]]
[[Category:Binary stars]]
[[Category:Planetary systems with one confirmed planet]]
[[Category:Planetary transit variables]]
[[Category:2MASS objects|J18184825+4510192]]
{{main-star-stub}}
{{extrasolar-planet-stub}}