{"id":9756,"slug":"hd-218566-b","name":"HD 218566 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":347.297417,"dec":-2.2611645,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":28.8274,"vmag":8.6,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":19,"simbad_oid":5477946,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"HD 218566 b","host_object_id":1881059,"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 218566b"],"measurements":[{"parameter":"eccentricity","value":0.27,"value_text":null,"unit":null,"err_plus":0.1,"err_minus":0.095,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Rosenthal et al. 2021","ref_year":2021},{"parameter":"eccentricity","value":0.3,"value_text":null,"unit":null,"err_plus":0.1,"err_minus":0.1,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"eccentricity","value":0.3,"value_text":null,"unit":null,"err_plus":0.1,"err_minus":0.1,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Meschiari et al. 2011","ref_year":2011},{"parameter":"mass","value":62.93002459,"value_text":null,"unit":"M_earth","err_plus":5.72091133,"err_minus":5.72091133,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Rosenthal et al. 2021","ref_year":2021},{"parameter":"mass","value":63.566,"value_text":null,"unit":"M_earth","err_plus":19.0698,"err_minus":19.0698,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"mass","value":66.7415,"value_text":null,"unit":"M_earth","err_plus":6.35633,"err_minus":6.35633,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Meschiari et al. 2011","ref_year":2011},{"parameter":"orbital_period","value":225.17,"value_text":null,"unit":"d","err_plus":0.42,"err_minus":0.52,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Rosenthal et al. 2021","ref_year":2021},{"parameter":"orbital_period","value":225.7,"value_text":null,"unit":"d","err_plus":0.4,"err_minus":0.4,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"orbital_period","value":225.7,"value_text":null,"unit":"d","err_plus":0.4,"err_minus":0.4,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Meschiari et al. 2011","ref_year":2011},{"parameter":"semi_major_axis","value":0.6875,"value_text":null,"unit":"au","err_plus":0.0081,"err_minus":0.0084,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Rosenthal et al. 2021","ref_year":2021},{"parameter":"semi_major_axis","value":0.69,"value_text":null,"unit":"au","err_plus":0.01,"err_minus":0.01,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"semi_major_axis","value":0.6873,"value_text":null,"unit":"au","err_plus":0.0008,"err_minus":0.0008,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Meschiari et al. 2011","ref_year":2011}],"orbit":null,"exoplanet":{"object_id":9756,"pl_name":"HD 218566 b","hostname":"HD 218566","sy_pnum":1,"disc_method":"Radial Velocity","disc_year":2010,"disc_facility":"W. M. Keck Observatory","orbper_d":225.7,"orbsmax_au":0.69,"rade":9.32,"radj":0.832,"masse":63.566,"massj":0.2,"dens_gcm3":0.431,"eccen":0.3,"insol":0.7414,"eqt_k":253.15,"st_teff":4730.0,"st_rad":0.85,"st_mass":0.76,"st_spectype":"K3V","sy_dist_pc":28.8274,"updated_at":"2026-09-13T03:31:17.289698+00:00"},"sources":[]}