WASP-67#Planetary system
{{Short description|Star in the constellation Sagittarius}}
{{Starbox begin}}
{{Starbox observe
| epoch = J2000
| constell = Sagittarius
| appmag_v = 12.54
}}
{{Starbox character
| type=Main sequence
}}
{{Starbox astrometry
| radial_v = {{val|-0.76|0.80}}
| parallax = 5.2720
| p_error = 0.0123
| parallax_footnote = {{cite Gaia DR3|6868476691490044672}}
}}
{{Starbox detail
| source =
| luminosity = 0.51{{cite journal
| title=Revised Exoplanet Radii and Habitability Using Gaia Data Release 2
| last1=Johns | first1=Daniel | last2=Marti | first2=Connor
| last3=Huff | first3=Madison | last4=McCann | first4=Jacob
| last5=Wittenmyer | first5=Robert A. | last6=Horner | first6=Jonathan
| last7=Wright | first7=Duncan J. | display-authors=1
| journal=The Astrophysical Journal Supplement Series
| volume=239 | issue=1 | id=14 | date=November 2018
| page=14 | arxiv=1808.04533 | doi=10.3847/1538-4365/aae5fb
| bibcode=2018ApJS..239...14J | doi-access=free }}
| temperature = {{val|5200|100}}
| rotation =
| rotational_velocity = {{val|2.1|0.4}}
}}
{{Starbox catalog
| names = {{odlist|WASP=67|TYC=6307-1388-1|2MASS=J19425852-1956585|Gaia DR2=6868476691490044672}}
}}
{{Starbox reference
| Simbad = WASP-67
}}
{{Starbox end}}
WASP-67 is a K-type main-sequence star about 620 light-years away. The star's age is poorly constrained. WASP-67 is slightly depleted in heavy elements, having 85% of the solar abundance of iron.
A multiplicity survey in 2016 has found one candidate stellar companion to WASP-67 at a projected separation of {{val|4.422|0.018|ul="}}.{{citation|arxiv=1603.03274|title=High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). I. Lucky imaging observations of 101 systems in the southern hemisphere|year=2016|doi=10.1051/0004-6361/201527970|last1=Evans|first1=D. F.|last2=Southworth|first2=J.|last3=Maxted|first3=P. F. L.|last4=Skottfelt|first4=J.|last5=Hundertmark|first5=M.|last6=Jørgensen|first6=U. G.|last7=Dominik|first7=M.|last8=Alsubai|first8=K. A.|last9=Andersen|first9=M. I.|last10=Bozza|first10=V.|last11=Bramich|first11=D. M.|last12=Burgdorf|first12=M. J.|last13=Ciceri|first13=S.|last14=d'Ago|first14=G.|last15=Figuera Jaimes|first15=R.|last16=Gu|first16=S.-H.|last17=Haugbølle|first17=T.|last18=Hinse|first18=T. C.|last19=Juncher|first19=D.|last20=Kains|first20=N.|last21=Kerins|first21=E.|last22=Korhonen|first22=H.|last23=Kuffmeier|first23=M.|last24=Mancini|first24=L.|last25=Peixinho|first25=N.|last26=Popovas|first26=A.|last27=Rabus|first27=M.|last28=Rahvar|first28=S.|last29=Schmidt|first29=R. W.|last30=Snodgrass|first30=C.|journal=Astronomy & Astrophysics|volume=589|pages=A58|bibcode=2016A&A...589A..58E|s2cid=14215845|display-authors=29}} Nonetheless, follow-up observations in 2017 failed to find any bound stellar companions.{{citation|arxiv=1709.07476|title=High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP). II. Lucky Imaging results from 2015 and 2016|year=2018|doi=10.1051/0004-6361/201731855|last1=Evans|first1=D. F.|last2=Southworth|first2=J.|last3=Smalley|first3=B.|last4=Jørgensen|first4=U. G.|last5=Dominik|first5=M.|last6=Andersen|first6=M. I.|last7=Bozza|first7=V.|last8=Bramich|first8=D. M.|last9=Burgdorf|first9=M. J.|last10=Ciceri|first10=S.|last11=d'Ago|first11=G.|last12=Figuera Jaimes|first12=R.|last13=Gu|first13=S.-H.|last14=Hinse|first14=T. C.|last15=Henning|first15=Th.|last16=Hundertmark|first16=M.|last17=Kains|first17=N.|last18=Kerins|first18=E.|last19=Korhonen|first19=H.|last20=Kokotanekova|first20=R.|last21=Kuffmeier|first21=M.|last22=Longa-Peña|first22=P.|last23=Mancini|first23=L.|last24=MacKenzie|first24=J.|last25=Popovas|first25=A.|last26=Rabus|first26=M.|last27=Rahvar|first27=S.|last28=Sajadian|first28=S.|last29=Snodgrass|first29=C.|last30=Skottfelt|first30=J.|journal=Astronomy & Astrophysics|volume=610|pages=A20|bibcode=2018A&A...610A..20E|s2cid=53400492|display-authors=29}}
Planetary system
In 2012 a transiting hot Jupiter planet b was detected on a tight, circular orbit.{{citation|arxiv=1204.5095|title=Seven transiting hot-Jupiters from WASP-South, Euler and TRAPPIST: WASP-47b, WASP-55b, WASP-61b, WASP-62b, WASP-63b, WASP-66b & WASP-67b|year=2012|doi=10.1111/j.1365-2966.2012.21780.x|last1=Hellier|first1=Coel|last2=Anderson|first2=D. R.|last3=Collier Cameron|first3=A.|last4=Doyle|first4=A. P.|last5=Fumel|first5=A.|last6=Gillon|first6=M.|last7=Jehin|first7=E.|last8=Lendl|first8=M.|last9=Maxted|first9=P. F. L.|last10=Pepe|first10=F.|last11=Pollacco|first11=D.|last12=Queloz|first12=D.|last13=Ségransan|first13=D.|last14=Smalley|first14=B.|last15=Smith|first15=A. M. S.|last16=Southworth|first16=J.|last17=Triaud|first17=A. H. M. J.|last18=Udry|first18=S.|last19=West|first19=R. G.|journal=Monthly Notices of the Royal Astronomical Society|volume=426|issue=1|pages=739–750|doi-access=free |bibcode=2012MNRAS.426..739H|s2cid=54713354}} Its equilibrium temperature is {{val|1050|ul=K}}.
The planetary atmosphere contains water, and a cloud layer is located higher than in the similar gas giant HAT-P-38b, indicating a high planetary metallicity.{{citation|arxiv=1712.03384|title=A COMPARATIVE STUDY OF WASP-67b AND HAT-P-38b FROM WFC3 DATA|year=2018|doi=10.3847/1538-3881/aaa0c7|last1=Bruno|first1=Giovanni|last2=Lewis|first2=Nikole K.|last3=Stevenson|first3=Kevin B.|last4=Filippazzo|first4=Joseph|last5=Hill|first5=Matthew|last6=Fraine|first6=Jonathan D.|last7=Wakeford|first7=Hannah R.|last8=Deming|first8=Drake|last9=Kilpatrick|first9=Brian|last10=Line|first10=Michael R.|last11=Morley|first11=Caroline V.|last12=Collins|first12=Karen A.|last13=Conti|first13=Dennis M.|last14=Garlitz|first14=Joseph|last15=Rodriguez|first15=Joseph E.|journal=The Astronomical Journal|volume=155|issue=2|page=55|bibcode=2018AJ....155...55B|s2cid=119083486 |doi-access=free }}
{{OrbitboxPlanet begin
| name = WASP-67
}}
{{OrbitboxPlanet
| exoplanet = b
| mass = {{val|0.43|0.09}}
| radius = {{val|1.15|0.11}}
| period = {{val|4.61442|0.00001}}
| inclination = {{val|85.8|0.35}}
}}
{{Orbitbox end}}
References
{{Reflist|refs=
{{Cite constellation|WASP-67}}
{{cite simbad |title=WASP-67}}
}}
{{Sky|19|42|58.5217|-|19|56|58.5230}}
{{Sagittarius (constellation)}}
{{DEFAULTSORT:WASP-67}}
Category:Sagittarius (constellation)
Category:K-type main-sequence stars
Category:Planetary systems with one confirmed planet