{"id":5826,"slug":"kepler-18-c","name":"Kepler-18 c","domain":"exoplanet","class":"exoplanet","otype":"Pl","otype_label":"Planet","ra":298.0794448,"dec":44.746248,"coo_err_mas":0.0101,"coo_bibcode":"2020yCat.1350....0G","plx_mas":2.2916,"pmra":-1.436,"pmdec":-20.341,"rv_kms":null,"redshift":null,"dist_pc":433.047,"vmag":13.771,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":88,"simbad_oid":6211598,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"Kepler-18 c","host_object_id":2710124,"depth":0,"deep_at":null,"views":3,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-09-13T03:31:17.289698+00:00","identifiers":["Kepler-18c"],"measurements":[{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Weiss et al. 2024","ref_year":2024},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2011},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2011},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2011},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Cochran et al. 2011","ref_year":2011},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2011},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2011},{"parameter":"equilibrium_temperature","value":899.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2011},{"parameter":"equilibrium_temperature","value":858.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2011},{"parameter":"equilibrium_temperature","value":899.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2011},{"parameter":"equilibrium_temperature","value":899.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2011},{"parameter":"equilibrium_temperature","value":899.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2011},{"parameter":"mass","value":2.76,"value_text":null,"unit":"M_earth","err_plus":1.09,"err_minus":0.73,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ofir et al. 2025","ref_year":2025},{"parameter":"mass","value":6.3,"value_text":null,"unit":"M_earth","err_plus":2.0,"err_minus":1.3,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ofir et al. 2025","ref_year":2025},{"parameter":"mass","value":19.74151127,"value_text":null,"unit":"M_earth","err_plus":4.9115445,"err_minus":4.9115445,"band":null,"method":"Transit","source":"nasa-exo","reference":"Weiss et al. 2024","ref_year":2024},{"parameter":"mass","value":18.4,"value_text":null,"unit":"M_earth","err_plus":2.7,"err_minus":1.9,"band":null,"method":"Transit","source":"nasa-exo","reference":"Hadden et al. 2014","ref_year":2014},{"parameter":"mass","value":17.3,"value_text":null,"unit":"M_earth","err_plus":1.9,"err_minus":1.9,"band":null,"method":"Transit","source":"nasa-exo","reference":"Cochran et al. 2011","ref_year":2011},{"parameter":"orbital_period","value":7.6415676,"value_text":null,"unit":"d","err_plus":1.8e-06,"err_minus":1.8e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ofir et al. 2025","ref_year":2025},{"parameter":"orbital_period","value":7.641571533,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Weiss et al. 2024","ref_year":2024},{"parameter":"orbital_period","value":7.641571533,"value_text":null,"unit":"d","err_plus":1.787e-06,"err_minus":1.787e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Fulton &amp; Petigura 2018","ref_year":2018},{"parameter":"orbital_period","value":7.64156219,"value_text":null,"unit":"d","err_plus":5.7e-07,"err_minus":5.7e-07,"band":null,"method":"Transit","source":"nasa-exo","reference":"Holczer et al. 2016","ref_year":2016},{"parameter":"orbital_period","value":7.641571533,"value_text":null,"unit":"d","err_plus":1.787e-06,"err_minus":1.787e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Morton et al. 2016","ref_year":2016},{"parameter":"orbital_period","value":7.642,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Hadden et al. 2014","ref_year":2014},{"parameter":"orbital_period","value":7.64159,"value_text":null,"unit":"d","err_plus":3e-05,"err_minus":3e-05,"band":null,"method":"Transit","source":"nasa-exo","reference":"Cochran et al. 2011","ref_year":2011},{"parameter":"orbital_period","value":7.641567589,"value_text":null,"unit":"d","err_plus":1.769e-06,"err_minus":1.769e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 Supplemental KOI Table","ref_year":2011},{"parameter":"orbital_period","value":7.641567589,"value_text":null,"unit":"d","err_plus":1.769e-06,"err_minus":1.769e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2011},{"parameter":"orbital_period","value":7.641571533,"value_text":null,"unit":"d","err_plus":1.787e-06,"err_minus":1.787e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2011},{"parameter":"orbital_period","value":7.641571533,"value_text":null,"unit":"d","err_plus":1.787e-06,"err_minus":1.787e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2011},{"parameter":"orbital_period","value":7.6415706,"value_text":null,"unit":"d","err_plus":7.6e-06,"err_minus":7.6e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2011},{"parameter":"orbital_period","value":7.641571533,"value_text":null,"unit":"d","err_plus":1.787e-06,"err_minus":1.787e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2011},{"parameter":"radius","value":4.267,"value_text":null,"unit":"R_earth","err_plus":0.106,"err_minus":0.106,"band":null,"method":"Transit","source":"nasa-exo","reference":"Weiss et al. 2024","ref_year":2024},{"parameter":"radius","value":4.267,"value_text":null,"unit":"R_earth","err_plus":0.106,"err_minus":0.106,"band":null,"method":"Transit","source":"nasa-exo","reference":"Fulton &amp; Petigura 2018","ref_year":2018},{"parameter":"radius","value":4.295,"value_text":null,"unit":"R_earth","err_plus":0.185,"err_minus":0.175,"band":null,"method":"Transit","source":"nasa-exo","reference":"Berger et al. 2018","ref_year":2018},{"parameter":"radius","value":4.99,"value_text":null,"unit":"R_earth","err_plus":0.39,"err_minus":0.34,"band":null,"method":"Transit","source":"nasa-exo","reference":"Morton et al. 2016","ref_year":2016},{"parameter":"radius","value":5.22,"value_text":null,"unit":"R_earth","err_plus":0.36,"err_minus":0.34,"band":null,"method":"Transit","source":"nasa-exo","reference":"Hadden et al. 2014","ref_year":2014},{"parameter":"radius","value":4.98,"value_text":null,"unit":"R_earth","err_plus":0.34,"err_minus":0.32,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2011},{"parameter":"radius","value":5.49,"value_text":null,"unit":"R_earth","err_plus":0.26,"err_minus":0.26,"band":null,"method":"Transit","source":"nasa-exo","reference":"Cochran et al. 2011","ref_year":2011},{"parameter":"radius","value":4.98,"value_text":null,"unit":"R_earth","err_plus":0.34,"err_minus":0.32,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2011},{"parameter":"radius","value":4.98,"value_text":null,"unit":"R_earth","err_plus":0.34,"err_minus":0.32,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2011},{"parameter":"radius","value":4.75,"value_text":null,"unit":"R_earth","err_plus":0.43,"err_minus":0.43,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2011},{"parameter":"radius","value":4.91,"value_text":null,"unit":"R_earth","err_plus":0.3,"err_minus":0.33,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2011},{"parameter":"semi_major_axis","value":0.0754940651,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Weiss et al. 2024","ref_year":2024},{"parameter":"semi_major_axis","value":0.07553,"value_text":null,"unit":"au","err_plus":0.00064,"err_minus":0.00064,"band":null,"method":"Transit","source":"nasa-exo","reference":"Fulton &amp; Petigura 2018","ref_year":2018},{"parameter":"semi_major_axis","value":0.0729,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2011},{"parameter":"semi_major_axis","value":0.0752,"value_text":null,"unit":"au","err_plus":0.0011,"err_minus":0.0011,"band":null,"method":"Transit","source":"nasa-exo","reference":"Cochran et al. 2011","ref_year":2011},{"parameter":"semi_major_axis","value":0.0729,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2011},{"parameter":"semi_major_axis","value":0.0729,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2011},{"parameter":"semi_major_axis","value":0.075,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2011},{"parameter":"semi_major_axis","value":0.0729,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2011}],"orbit":null,"exoplanet":{"object_id":5826,"pl_name":"Kepler-18 c","hostname":"Kepler-18","sy_pnum":3,"disc_method":"Transit","disc_year":2011,"disc_facility":"Kepler","orbper_d":7.64159,"orbsmax_au":0.0752,"rade":5.49,"radj":0.49,"masse":17.3,"massj":0.054,"dens_gcm3":0.59,"eccen":0.0,"insol":126.081,"eqt_k":899.0,"st_teff":5345.0,"st_rad":1.108,"st_mass":0.972,"st_spectype":null,"sy_dist_pc":433.047,"updated_at":"2026-09-13T03:31:17.289698+00:00"},"sources":[]}