{"id":8039,"slug":"hd-220842-b","name":"HD 220842 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":351.6534162,"dec":56.8871415,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":64.6498,"vmag":7.98,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":8,"simbad_oid":10174334,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"HD 220842 b","host_object_id":1602275,"depth":0,"deep_at":null,"views":3,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-10-18T03:30:41.791363+00:00","identifiers":["HD 220842b"],"measurements":[{"parameter":"eccentricity","value":0.404,"value_text":null,"unit":null,"err_plus":0.009,"err_minus":0.009,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Hébrard et al. 2016","ref_year":2016},{"parameter":"mass","value":1010.6994,"value_text":null,"unit":"M_earth","err_plus":47.6745,"err_minus":47.6745,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Hébrard et al. 2016","ref_year":2016},{"parameter":"orbital_period","value":218.47,"value_text":null,"unit":"d","err_plus":0.19,"err_minus":0.19,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Hébrard et al. 2016","ref_year":2016},{"parameter":"semi_major_axis","value":0.74,"value_text":null,"unit":"au","err_plus":0.018,"err_minus":0.018,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Hébrard et al. 2016","ref_year":2016}],"orbit":null,"exoplanet":{"object_id":8039,"pl_name":"HD 220842 b","hostname":"HD 220842","sy_pnum":1,"disc_method":"Radial Velocity","disc_year":2016,"disc_facility":"Haute-Provence Observatory","orbper_d":218.47,"orbsmax_au":0.74,"rade":13.1,"radj":1.17,"masse":1010.6994,"massj":3.18,"dens_gcm3":2.47,"eccen":0.404,"insol":4.155,"eqt_k":397.62,"st_teff":5960.0,"st_rad":1.41647,"st_mass":1.13,"st_spectype":"F8","sy_dist_pc":64.6498,"updated_at":"2026-10-18T03:30:41.791363+00:00"},"sources":[]}