J/AJ/159/243ivo://CDS.VizieR/J/AJ/159/243doi:10.26093/cds/vizier/be-4z-7kCDSPepper J.Kane S.R.Rodriguez J.E.Hinkel N.R.Eastman J.D.,Daylan T.Mocnik T.Dalba P.A.Gaudi B.S.Fetherolf T.Stassun K.G.,Campante T.L.Vanderburg A.Huber D.Bossini D.Crossfield I.,Howell S.B.Stephens A.W.Furlan E.Ricker G.R.Vanderspek R.,Latham D.W.Seager S.Winn J.N.Jenkins J.M.Twicken J.D.Rose M.,Smith J.C.Glidden A.Levine A.M.Rinehart S.Collins K.A.Mann A.W.,Burt J.A.James D.J.Siverd R.J.Gunther M.N.2026-07-02T11:44:05Z2025-09-19T08:36:43ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frexoplanetsphotometryvisible-astronomyThe exoplanet HD 118203 b, orbiting a bright (V=8.05) host star, was discovered using the radial velocity method by da Silva et al., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be 1.136_-0.028_^+0.029^ R_J_, and to calculate the planet mass to be 2.166_-0.079_^+0.074^ M_J_. The host star is slightly evolved with an effective temperature of T_eff_=5683_-85_^+84^K and a surface gravity of log(g)=3.889_0.018_^0.017^. With an orbital period of 6.134985_-0.000030_^+0.000029^ days and an eccentricity of 0.314+/-0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.2020AJ....159..243Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/243CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/135 : Henry Draper Cat. & Extension (Cannon+ 1918-1924; ADC 1989)I/259 : The Tycho-2 Catalogue (Hog+ 2000)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/328 : AllWISE Data Release (Cutri+ 2013)II/335 : Revised cat. of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)I/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)J/AJ/106/773 : Mass-luminosity relation (Henry+, 1993)J/PASP/110/863 : A Stellar Spectral Flux Library: 1150-25000 A (Pickles 1998)J/A+A/410/527 : Abundances in the Galactic disk (Bensby+, 2003)J/ApJ/640/1051 : 25pc sample of Sun-like stars (Grether+, 2006)J/MNRAS/403/1368 : Li abund. & vsini for star-planet systems (Gonzalez+, 2010)J/A+A/533/A114 : Transit of super-Earth 55 Cnc e (Demory+, 2011)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/A+A/546/A27 : Radial velocity and photometry for GJ3470 (Bonfils+, 2012)J/ApJ/754/37 : HD 192263 radial velocities and photometry (Dragomir+, 2012)J/ApJ/772/L2 : Keck/HIRES radial velocities for HD 97658 (Dragomir+, 2013)J/A+A/554/A84 : Abundances of evolved stars (Maldonado+, 2013)J/AJ/148/54 : The Hypatia Catalog ((Hinkel+, 2014)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/MNRAS/445/2758 : KIC giants Bayesian dist. & extinctions (Rodrigues+ 2014)J/A+A/576/A69 : Li abundances in F stars (Delgado Mena+, 2015)J/A+A/584/A72 : A transiting rocky planet at 6.5pc from Sun (Motalebi+ 2015)J/A+A/576/A94 : Northern bright planet host stars parameters (Sousa+, 2015)J/A+A/588/A98 : Metallicities & abund. of evolved stars (Maldonado+, 2016)J/ApJS/222/14 : Planetary candidat. from 1st yr K2 mission (Vanderburg+, 2016)J/MNRAS/472/1618 : Kepler study of starspot lifetimes (Giles+, 2017)J/AJ/153/21 : Abund. in the local region. II. F, G, & K dwarfs (Luck+, 2017)J/A+A/625/A16 : HD 2685 TESS photometry (Jones+, 2019)J/AJ/157/191 : Light curve & radial velocities for TOI-172 (Rodriguez+, 2019)J/ApJS/241/12 : Asteroseismic Target List (ATL) for TESS (Schofield+, 2019)J/AJ/159/60 : 8695 flares from 1228 stars in TESS sect. 1 & 2 (Gunther+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/243https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/243http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/243https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/159/243https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/159/243http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/159/243GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/159/243/fig1The flattened TESS PDCSAP 2-minute cadence light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[1711/1764] Barycentric Julian Date, BJD-2457000dtime.epochdoubleindexedFlux[0.99/1.01] Relative Fluxphot.flux;arith.ratio;em.optdoublee_Flux[3.51e-4] Uncertainty in Fluxstat.error;phot.flux;em.optdouble