{"id":2434,"slug":"hd-219828-b","name":"HD 219828 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":349.6947029,"dec":18.6457524,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":73.114,"vmag":8.04,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":34,"simbad_oid":3895302,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"HD 219828 b","host_object_id":1920275,"depth":0,"deep_at":null,"views":1,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-09-13T03:31:17.289698+00:00","identifiers":["HD 219828b"],"measurements":[{"parameter":"eccentricity","value":0.091,"value_text":null,"unit":null,"err_plus":0.021,"err_minus":0.025,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Feng et al. 2022","ref_year":2022},{"parameter":"eccentricity","value":0.101,"value_text":null,"unit":null,"err_plus":0.063,"err_minus":0.063,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Ment et al. 2018","ref_year":2018},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"eccentricity","value":0.059,"value_text":null,"unit":null,"err_plus":0.036,"err_minus":0.036,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Santos et al. 2016","ref_year":2016},{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Melo et al. 2007","ref_year":2007},{"parameter":"mass","value":19.06970442,"value_text":null,"unit":"M_earth","err_plus":1.58914204,"err_minus":1.58914204,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Feng et al. 2022","ref_year":2022},{"parameter":"mass","value":20.97678,"value_text":null,"unit":"M_earth","err_plus":3.81396,"err_minus":3.81396,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Ment et al. 2018","ref_year":2018},{"parameter":"mass","value":19.0698,"value_text":null,"unit":"M_earth","err_plus":3.1783,"err_minus":3.1783,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"mass","value":21.0,"value_text":null,"unit":"M_earth","err_plus":1.4,"err_minus":1.4,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Santos et al. 2016","ref_year":2016},{"parameter":"mass","value":19.8,"value_text":null,"unit":"M_earth","err_plus":null,"err_minus":null,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Melo et al. 2007","ref_year":2007},{"parameter":"orbital_period","value":3.83483,"value_text":null,"unit":"d","err_plus":7e-05,"err_minus":7e-05,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Feng et al. 2022","ref_year":2022},{"parameter":"orbital_period","value":3.83492,"value_text":null,"unit":"d","err_plus":0.00014,"err_minus":0.00014,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Ment et al. 2018","ref_year":2018},{"parameter":"orbital_period","value":3.8335,"value_text":null,"unit":"d","err_plus":0.0013,"err_minus":0.0013,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"orbital_period","value":3.834887,"value_text":null,"unit":"d","err_plus":9.6e-05,"err_minus":9.6e-05,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Santos et al. 2016","ref_year":2016},{"parameter":"orbital_period","value":3.8335,"value_text":null,"unit":"d","err_plus":0.0013,"err_minus":0.0013,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Melo et al. 2007","ref_year":2007},{"parameter":"semi_major_axis","value":0.049,"value_text":null,"unit":"au","err_plus":0.002,"err_minus":0.002,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Feng et al. 2022","ref_year":2022},{"parameter":"semi_major_axis","value":0.0507,"value_text":null,"unit":"au","err_plus":0.0029,"err_minus":0.0029,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Ment et al. 2018","ref_year":2018},{"parameter":"semi_major_axis","value":0.05,"value_text":null,"unit":"au","err_plus":0.0,"err_minus":null,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"semi_major_axis","value":0.045,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Santos et al. 2016","ref_year":2016}],"orbit":null,"exoplanet":{"object_id":2434,"pl_name":"HD 219828 b","hostname":"HD 219828","sy_pnum":2,"disc_method":"Radial Velocity","disc_year":2007,"disc_facility":"La Silla Observatory","orbper_d":3.83483,"orbsmax_au":0.049,"rade":4.59,"radj":0.409,"masse":19.06970442,"massj":0.06,"dens_gcm3":1.08,"eccen":0.091,"insol":1095.4885,"eqt_k":1602.83,"st_teff":5891.0,"st_rad":1.56,"st_mass":1.04,"st_spectype":"G0 IV","sy_dist_pc":73.114,"updated_at":"2026-09-13T03:31:17.289698+00:00"},"sources":[]}