{"id":6344,"slug":"k2-228-b","name":"K2-228 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":187.2947047,"dec":-6.8342028,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":129.46,"vmag":13.028,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":7,"simbad_oid":13690542,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"K2-228 b","host_object_id":3486318,"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":["K2-228b"],"measurements":[{"parameter":"equilibrium_temperature","value":914.0,"value_text":null,"unit":"K","err_plus":14.0,"err_minus":13.0,"band":null,"method":"Transit","source":"nasa-exo","reference":"Livingston et al. 2018","ref_year":2018},{"parameter":"orbital_period","value":2.698368,"value_text":null,"unit":"d","err_plus":0.000128,"err_minus":0.000136,"band":null,"method":"Transit","source":"nasa-exo","reference":"Mayo et al. 2018","ref_year":2018},{"parameter":"orbital_period","value":2.69828,"value_text":null,"unit":"d","err_plus":0.00022,"err_minus":0.00022,"band":null,"method":"Transit","source":"nasa-exo","reference":"Livingston et al. 2018","ref_year":2018},{"parameter":"radius","value":1.38434336,"value_text":null,"unit":"R_earth","err_plus":0.10160254,"err_minus":0.08631254,"band":null,"method":"Transit","source":"nasa-exo","reference":"Mayo et al. 2018","ref_year":2018},{"parameter":"radius","value":1.21,"value_text":null,"unit":"R_earth","err_plus":0.1,"err_minus":0.06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Livingston et al. 2018","ref_year":2018},{"parameter":"semi_major_axis","value":0.0338,"value_text":null,"unit":"au","err_plus":0.0003,"err_minus":0.0003,"band":null,"method":"Transit","source":"nasa-exo","reference":"Livingston et al. 2018","ref_year":2018}],"orbit":null,"exoplanet":{"object_id":6344,"pl_name":"K2-228 b","hostname":"K2-228","sy_pnum":1,"disc_method":"Transit","disc_year":2018,"disc_facility":"K2","orbper_d":2.69828,"orbsmax_au":0.0338,"rade":1.21,"radj":0.10794897,"masse":1.92,"massj":0.00606,"dens_gcm3":5.96,"eccen":null,"insol":123.9803,"eqt_k":914.0,"st_teff":4715.0,"st_rad":0.65,"st_mass":0.71,"st_spectype":null,"sy_dist_pc":129.46,"updated_at":"2026-10-18T03:30:41.791363+00:00"},"sources":[]}