{"id":6930,"slug":"kelt-21-b","name":"KELT-21 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":304.8000322,"dec":32.5810446,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":470.878,"vmag":10.484,"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":"KELT-21 b","host_object_id":2200196,"depth":0,"deep_at":null,"views":2,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-10-04T05:08:08.462019+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":"Johnson et al. 2018","ref_year":2018},{"parameter":"equilibrium_temperature","value":2051.0,"value_text":null,"unit":"K","err_plus":29.0,"err_minus":30.0,"band":null,"method":"Transit","source":"nasa-exo","reference":"Johnson et al. 2018","ref_year":2018},{"parameter":"equilibrium_temperature","value":2344.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"ExoFOP","ref_year":2018},{"parameter":"mass","value":1242.7153,"value_text":null,"unit":"M_earth","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Johnson et al. 2018","ref_year":2018},{"parameter":"orbital_period","value":3.61276958,"value_text":null,"unit":"d","err_plus":9.5e-07,"err_minus":9.5e-07,"band":null,"method":"Transit","source":"nasa-exo","reference":"Kokori et al. 2023","ref_year":2023},{"parameter":"orbital_period","value":3.6127691,"value_text":null,"unit":"d","err_plus":1.2e-06,"err_minus":1.2e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ivshina &amp; Winn 2022","ref_year":2022},{"parameter":"orbital_period","value":3.6127647,"value_text":null,"unit":"d","err_plus":3.3e-06,"err_minus":3.3e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Johnson et al. 2018","ref_year":2018},{"parameter":"orbital_period","value":3.612771,"value_text":null,"unit":"d","err_plus":2.4e-06,"err_minus":2.4e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"ExoFOP","ref_year":2018},{"parameter":"radius","value":17.777474,"value_text":null,"unit":"R_earth","err_plus":0.437151,"err_minus":0.44836,"band":null,"method":"Transit","source":"nasa-exo","reference":"Johnson et al. 2018","ref_year":2018},{"parameter":"radius","value":19.3662,"value_text":null,"unit":"R_earth","err_plus":0.686027,"err_minus":0.686027,"band":null,"method":"Transit","source":"nasa-exo","reference":"ExoFOP","ref_year":2018},{"parameter":"semi_major_axis","value":0.05224,"value_text":null,"unit":"au","err_plus":0.00035,"err_minus":0.00034,"band":null,"method":"Transit","source":"nasa-exo","reference":"Johnson et al. 2018","ref_year":2018}],"orbit":null,"exoplanet":{"object_id":6930,"pl_name":"KELT-21 b","hostname":"KELT-21","sy_pnum":1,"disc_method":"Transit","disc_year":2018,"disc_facility":"KELT-North","orbper_d":3.6127647,"orbsmax_au":0.05224,"rade":17.777474,"radj":1.586,"masse":1242.7153,"massj":3.91,"dens_gcm3":1.24,"eccen":0.0,"insol":2950.0,"eqt_k":2051.0,"st_teff":7598.0,"st_rad":1.638,"st_mass":1.458,"st_spectype":"A8 V","sy_dist_pc":470.878,"updated_at":"2026-10-04T05:08:08.462019+00:00"},"sources":[]}