WASP-67#Planetary system

{{Short description|Star in the constellation Sagittarius}}

{{Starbox begin}}

{{Starbox observe

| epoch = J2000

| constell = Sagittarius

| ra = {{RA|19|42|58.5218}}

| dec = {{DEC|-19|56|58.521}}

| appmag_v = 12.54

}}

{{Starbox character

| type=Main sequence

| class = K0V

}}

{{Starbox astrometry

| radial_v = {{val|-0.76|0.80}}

| prop_mo_ra = +1.647

| prop_mo_dec = −33.032

| parallax = 5.2720

| p_error = 0.0123

| parallax_footnote = {{cite Gaia DR3|6868476691490044672}}

}}

{{Starbox detail

| source =

| mass = {{val|0.91|0.28}}

| radius = {{val|0.88|0.08}}

| gravity = {{val|4.35|0.15}}

| 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}}

| metal_fe = −0.07

| rotation =

| rotational_velocity = {{val|2.1|0.4}}

| age_gyr = {{val|4.3|3.1}}{{cite journal |bibcode=2022ApJ...925..164H |title=Beyond Spectroscopy. I. Metallicities, Distances, and Age Estimates for over 20 Million Stars from SMSS DR2 and Gaia EDR3 |last1=Huang |first1=Yang |last2=Beers |first2=Timothy C. |last3=Wolf |first3=Christian |last4=Lee |first4=Young Sun |last5=Onken |first5=Christopher A. |last6=Yuan |first6=Haibo |last7=Shank |first7=Derek |last8=Zhang |first8=Huawei |last9=Wang |first9=Chun |last10=Shi |first10=Jianrong |last11=Fan |first11=Zhou |journal=The Astrophysical Journal |date=2022 |volume=925 |issue=2 |page=164 |doi=10.3847/1538-4357/ac21cb |doi-access=free |arxiv=2104.14154 }}

}}

{{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

| table_ref ={{citation|arxiv=1609.04389|year=2016|doi=10.3847/1538-3881/aa5df3|last1=Stassun|first1=Keivan G.|last2=Collins|first2=Karen A.|last3=Gaudi|first3=B. Scott|title=Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes|journal=The Astronomical Journal|volume=153|issue=3|page=136|bibcode=2017AJ....153..136S |s2cid=119219062 |doi-access=free }}

}}

{{OrbitboxPlanet

| exoplanet = b

| mass = {{val|0.43|0.09}}

| radius = {{val|1.15|0.11}}

| semimajor = {{val|0.0510|0.001|0.0008}}{{citation|arxiv=1406.7448|title=Physical properties of the WASP-67 planetary system from multi-colour photometry|year=2014|doi=10.1051/0004-6361/201424106|last1=Mancini|first1=L.|last2=Southworth|first2=J.|last3=Ciceri|first3=S.|last4=Calchi Novati|first4=S.|last5=Dominik|first5=M.|last6=Henning|first6=Th.|last7=Jørgensen|first7=U. G.|last8=Korhonen|first8=H.|last9=Nikolov|first9=N.|last10=Alsubai|first10=K. A.|last11=Bozza|first11=V.|last12=Bramich|first12=D. M.|last13=d'Ago|first13=G.|last14=Figuera Jaimes|first14=R.|last15=Galianni|first15=P.|last16=Gu|first16=S.-H.|last17=Harpsøe|first17=K.|last18=Hinse|first18=T. C.|last19=Hundertmark|first19=M.|last20=Juncher|first20=D.|last21=Kains|first21=N.|last22=Popovas|first22=A.|last23=Rabus|first23=M.|last24=Rahvar|first24=S.|last25=Skottfelt|first25=J.|last26=Snodgrass|first26=C.|last27=Street|first27=R.|last28=Surdej|first28=J.|last29=Tsapras|first29=Y.|last30=Vilela|first30=C.|journal=Astronomy & Astrophysics|volume=568|pages=A127|bibcode=2014A&A...568A.127M|s2cid=53646473|display-authors=29}}

| period = {{val|4.61442|0.00001}}

| eccentricity = 0{{citation|arxiv=1508.00902|year=2015|doi=10.1088/0004-637X/810/2/118|last1=Kammer|first1=Joshua A.|last2=Knutson|first2=Heather A.|last3=Line|first3=Michael R.|last4=Fortney|first4=Jonathan J.|last5=Deming|first5=Drake|last6=Burrows|first6=Adam|last7=Cowan|first7=Nicolas B.|last8=Triaud|first8=Amaury H. M. J.|last9=Agol|first9=Eric|last10=Desert|first10=Jean-Michel|last11=Fulton|first11=Benjamin J.|last12=Howard|first12=Andrew W.|last13=Laughlin|first13=Gregory P.|last14=Lewis|first14=Nikole K.|last15=Morley|first15=Caroline V.|last16=Moses|first16=Julianne I.|last17=Showman|first17=Adam P.|last18=Todorov|first18=Kamen O.|title=Spitzersecondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra|journal=The Astrophysical Journal|volume=810|issue=2|page=118|bibcode=2015ApJ...810..118K|s2cid=13378720}}

| 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

Category:Planetary transit variables

J19425852-1956585