{"id":469,"slug":"koi-1831-d","name":"KOI-1831 d","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":286.4714473,"dec":49.6490933,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":501.574,"vmag":14.222,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":0,"simbad_oid":null,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"KOI-1831 d","host_object_id":2841929,"depth":0,"deep_at":null,"views":7,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-09-13T03:31:17.289698+00:00","identifiers":[],"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":"Q1-Q8 KOI Table","ref_year":2018},{"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":2018},{"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":2018},{"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":2018},{"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":2018},{"parameter":"equilibrium_temperature","value":475.0,"value_text":null,"unit":"K","err_plus":9.0,"err_minus":9.0,"band":null,"method":"Transit","source":"nasa-exo","reference":"Jontof-Hutter et al. 2021","ref_year":2021},{"parameter":"equilibrium_temperature","value":471.0,"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":2018},{"parameter":"equilibrium_temperature","value":474.0,"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":2018},{"parameter":"equilibrium_temperature","value":459.0,"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":2018},{"parameter":"equilibrium_temperature","value":474.0,"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":2018},{"parameter":"equilibrium_temperature","value":474.0,"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":2018},{"parameter":"mass","value":1.26,"value_text":null,"unit":"M_earth","err_plus":0.35,"err_minus":0.24,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ofir et al. 2025","ref_year":2025},{"parameter":"mass","value":2.23,"value_text":null,"unit":"M_earth","err_plus":0.5,"err_minus":0.84,"band":null,"method":"Transit","source":"nasa-exo","reference":"Jontof-Hutter et al. 2021","ref_year":2021},{"parameter":"orbital_period","value":34.205785,"value_text":null,"unit":"d","err_plus":1.5e-05,"err_minus":1.5e-05,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ofir et al. 2025","ref_year":2025},{"parameter":"orbital_period","value":34.169,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Jontof-Hutter et al. 2021","ref_year":2021},{"parameter":"orbital_period","value":34.2069395,"value_text":null,"unit":"d","err_plus":0.0006869,"err_minus":0.0006869,"band":null,"method":"Transit","source":"nasa-exo","reference":"Fulton & Petigura 2018","ref_year":2018},{"parameter":"orbital_period","value":34.205785079,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2018},{"parameter":"orbital_period","value":34.2069395,"value_text":null,"unit":"d","err_plus":0.0006869,"err_minus":0.0006869,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2018},{"parameter":"orbital_period","value":34.2069395,"value_text":null,"unit":"d","err_plus":0.0006869,"err_minus":0.0006869,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2018},{"parameter":"orbital_period","value":34.2069,"value_text":null,"unit":"d","err_plus":0.00087,"err_minus":0.00087,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2018},{"parameter":"orbital_period","value":34.205785079,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 Supplemental KOI Table","ref_year":2018},{"parameter":"orbital_period","value":34.2069395,"value_text":null,"unit":"d","err_plus":0.0006869,"err_minus":0.0006869,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2018},{"parameter":"orbital_period","value":34.19311054,"value_text":null,"unit":"d","err_plus":5.134e-05,"err_minus":5.134e-05,"band":null,"method":"Transit","source":"nasa-exo","reference":"Holczer et al. 2016","ref_year":2016},{"parameter":"radius","value":1.13,"value_text":null,"unit":"R_earth","err_plus":0.05,"err_minus":0.05,"band":null,"method":"Transit","source":"nasa-exo","reference":"Jontof-Hutter et al. 2021","ref_year":2021},{"parameter":"radius","value":1.3,"value_text":null,"unit":"R_earth","err_plus":1.2,"err_minus":1.2,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2018},{"parameter":"radius","value":1.1,"value_text":null,"unit":"R_earth","err_plus":0.09,"err_minus":0.06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2018},{"parameter":"radius","value":1.13,"value_text":null,"unit":"R_earth","err_plus":0.35,"err_minus":0.08,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2018},{"parameter":"radius","value":1.13,"value_text":null,"unit":"R_earth","err_plus":0.35,"err_minus":0.08,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2018},{"parameter":"radius","value":1.13,"value_text":null,"unit":"R_earth","err_plus":0.35,"err_minus":0.08,"band":null,"method":"Transit","source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2018},{"parameter":"radius","value":1.175,"value_text":null,"unit":"R_earth","err_plus":0.081,"err_minus":0.081,"band":null,"method":"Transit","source":"nasa-exo","reference":"Fulton & Petigura 2018","ref_year":2018},{"parameter":"semi_major_axis","value":0.199,"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":2018},{"parameter":"semi_major_axis","value":0.199,"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":2018},{"parameter":"semi_major_axis","value":0.1949,"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":2018},{"parameter":"semi_major_axis","value":0.199,"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":2018},{"parameter":"semi_major_axis","value":0.19924,"value_text":null,"unit":"au","err_plus":0.00163,"err_minus":0.00163,"band":null,"method":"Transit","source":"nasa-exo","reference":"Fulton & Petigura 2018","ref_year":2018},{"parameter":"semi_major_axis","value":0.196,"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":2018}],"orbit":null,"exoplanet":{"object_id":469,"pl_name":"KOI-1831 d","hostname":"Kepler-324","sy_pnum":4,"disc_method":"Transit","disc_year":2018,"disc_facility":"Kepler","orbper_d":34.169,"orbsmax_au":0.19924,"rade":1.13,"radj":0.10081202,"masse":2.23,"massj":0.00701636,"dens_gcm3":9.95,"eccen":0.0,"insol":11.8,"eqt_k":475.0,"st_teff":5233.0,"st_rad":0.835,"st_mass":0.901,"st_spectype":null,"sy_dist_pc":501.574,"updated_at":"2026-09-13T03:31:17.289698+00:00"},"sources":[]}