WASP-59
{{Short description|Star in the constellation Pegasus}}
{{Starbox begin
| name = WASP-59
}}
{{Starbox observe
| epoch = J2000
| constell = Pegasus
| appmag_v = 12.78
}}
{{Starbox character
| type=Main sequence
| class = K5V
}}
{{Starbox astrometry
| parallax = 8.5968
| p_error = 0.0421
| parallax_footnote = {{cite DR2|2841043011433969152}}
}}
{{Starbox detail
| mass = 0.719{{±|0.035}}
| radius = 0.613{{±|0.044}}
| gravity =
| luminosity =
| temperature = 4650{{±|150}}
| metal_fe = -0.15{{±|0.11}}
| rotation =
| rotational_velocity =2.3{{±|1.5}}
| age_gyr = 7{{±|7}}
}}
{{Starbox catalog
| names = {{odlist|2MASS=J23182955+2453214|Gaia DR2=2841043011433969152}}
}}
{{Starbox reference
| Simbad = WASP-59
}}
{{Starbox end}}
WASP-59 is a K-type main-sequence star about 379 light-years away. The star's age is essentially unconstrained by observations. WASP-59 is slightly depleted in heavy elements, having 70% of the solar abundance of iron. The star produces extremely low levels of ultraviolet light, indicating an absence of flare activity.{{citation|arxiv=1301.6192|title=An Ultraviolet Investigation of Activity on Exoplanet Host Stars|year=2013|doi=10.1088/0004-637X/766/1/9|last1=Shkolnik|first1=Evgenya L.|journal=The Astrophysical Journal|volume=766|issue=1|page=9|bibcode=2013ApJ...766....9S|s2cid=118415788}}
A multiplicity survey in 2015 did not detect any stellar companions to WASP-59.{{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}}
Planetary system
In 2012 a transiting hot Jupiter planet b was detected on a tight, mildly eccentric orbit.{{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=29}}
Its equilibrium temperature is {{val|670|35|ul=K}}. The planet is unusually dense for a gas giant, representing an outlier on a mass-radius diagram.{{citation|arxiv=1306.3509|title=High-precision photometry by telescope defocussing. V. WASP-15 and WASP-16|year=2013|doi=10.1093/mnras/stt1089|last1=Southworth|first1=J.|last2=Mancini|first2=L.|last3=Browne|first3=P.|last4=Burgdorf|first4=M.|last5=Calchi Novati|first5=S.|last6=Dominik|first6=M.|last7=Gerner|first7=T.|last8=Hinse|first8=T. C.|last9=Jorgensen|first9=U. G.|last10=Kains|first10=N.|last11=Ricci|first11=D.|last12=Schafer|first12=S.|last13=Schonebeck|first13=F.|last14=Tregloan-Reed|first14=J.|last15=Alsubai|first15=K. A.|last16=Bozza|first16=V.|last17=Chen|first17=G.|last18=Dodds|first18=P.|last19=Dreizler|first19=S.|last20=Fang|first20=X. -S.|last21=Finet|first21=F.|last22=Gu|first22=S. -H.|last23=Hardis|first23=S.|last24=Harpsoe|first24=K.|last25=Henning|first25=Th.|last26=Hundertmark|first26=M.|last27=Jessen-Hansen|first27=J.|last28=Kerins|first28=E.|last29=Kjeldsen|first29=H.|last30=Liebig|first30=C.|journal=Monthly Notices of the Royal Astronomical Society |volume=434 |issue=2 |pages=1300–1308 |doi-access=free |s2cid=53645606|display-authors=29}}
{{OrbitboxPlanet begin
| name = WASP-59
}}
{{OrbitboxPlanet
| exoplanet = b
| mass = 0.857{{±|0.046|0.047}}
| radius = 0.775{{±|0.068}}
| semimajor = 0.0697{{±|0.0011}}
| period = 7.919585{{±|0.000010}}
| eccentricity = 0.101{{±|0.046|0.048}}
| inclination = 89.27{{±|0.52}}
}}
{{Orbitbox end}}
References
{{Reflist|refs=
{{cite simbad |title=WASP-59}}
}}
{{Sky|23|18|29.5475|+|24|53|21.4364}}
{{Pegasus (constellation)}}
{{DEFAULTSORT:WASP-59}}
Category:Pegasus (constellation)
Category:K-type main-sequence stars
Category:Planetary systems with one confirmed planet
Category:Planetary transit variables
{{main-star-stub}}
{{extrasolar-planet-stub}}