{"id":9077,"slug":"k2-221-b","name":"K2-221 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":16.6550286,"dec":10.1897385,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":318.81,"vmag":12.571,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":5,"simbad_oid":14786050,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"K2-221 b","host_object_id":3486315,"depth":0,"deep_at":null,"views":1,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-10-18T03:30:41.791363+00:00","identifiers":["K2-221b"],"measurements":[{"parameter":"orbital_period","value":2.398982,"value_text":null,"unit":"d","err_plus":9.1e-05,"err_minus":9.2e-05,"band":null,"method":"Transit","source":"nasa-exo","reference":"Kruse et al. 2019","ref_year":2019},{"parameter":"orbital_period","value":2.399094,"value_text":null,"unit":"d","err_plus":0.000125,"err_minus":0.000118,"band":null,"method":"Transit","source":"nasa-exo","reference":"Mayo et al. 2018","ref_year":2018},{"parameter":"radius","value":1.98,"value_text":null,"unit":"R_earth","err_plus":0.11,"err_minus":0.25,"band":null,"method":"Transit","source":"nasa-exo","reference":"Kruse et al. 2019","ref_year":2019},{"parameter":"radius","value":1.67890272,"value_text":null,"unit":"R_earth","err_plus":0.1668616,"err_minus":0.09566216,"band":null,"method":"Transit","source":"nasa-exo","reference":"Mayo et al. 2018","ref_year":2018}],"orbit":null,"exoplanet":{"object_id":9077,"pl_name":"K2-221 b","hostname":"K2-221","sy_pnum":1,"disc_method":"Transit","disc_year":2018,"disc_facility":"K2","orbper_d":2.399094,"orbsmax_au":null,"rade":1.67890272,"radj":0.14978167,"masse":3.46,"massj":0.0109,"dens_gcm3":4.02,"eccen":null,"insol":null,"eqt_k":null,"st_teff":5716.0,"st_rad":0.947599,"st_mass":1.010842,"st_spectype":null,"sy_dist_pc":318.81,"updated_at":"2026-10-18T03:30:41.791363+00:00"},"sources":[]}