{"id":6145,"slug":"hd-18742-b","name":"HD 18742 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":45.0443115,"dec":-20.8027024,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":162.685,"vmag":7.81,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":13,"simbad_oid":6179239,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"HD 18742 b","host_object_id":1716729,"depth":0,"deep_at":null,"views":2,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-10-04T05:08:08.462019+00:00","identifiers":["HD 18742b"],"measurements":[{"parameter":"eccentricity","value":0.04,"value_text":null,"unit":null,"err_plus":0.035,"err_minus":0.035,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Luhn et al. 2019","ref_year":2019},{"parameter":"eccentricity","value":0.12,"value_text":null,"unit":null,"err_plus":0.06,"err_minus":0.06,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"eccentricity","value":0.12,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Johnson et al. 2011","ref_year":2011},{"parameter":"mass","value":1080.622,"value_text":null,"unit":"M_earth","err_plus":381.396,"err_minus":381.396,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Luhn et al. 2019","ref_year":2019},{"parameter":"mass","value":1185.5059,"value_text":null,"unit":"M_earth","err_plus":123.9537,"err_minus":123.9537,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"mass","value":858.1,"value_text":null,"unit":"M_earth","err_plus":95.3,"err_minus":95.3,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Johnson et al. 2011","ref_year":2011},{"parameter":"orbital_period","value":766.0,"value_text":null,"unit":"d","err_plus":25.0,"err_minus":25.0,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Luhn et al. 2019","ref_year":2019},{"parameter":"orbital_period","value":772.0,"value_text":null,"unit":"d","err_plus":11.0,"err_minus":11.0,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"orbital_period","value":772.0,"value_text":null,"unit":"d","err_plus":11.0,"err_minus":11.0,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Johnson et al. 2011","ref_year":2011},{"parameter":"semi_major_axis","value":1.82,"value_text":null,"unit":"au","err_plus":0.14,"err_minus":0.14,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Luhn et al. 2019","ref_year":2019},{"parameter":"semi_major_axis","value":1.98,"value_text":null,"unit":"au","err_plus":0.07,"err_minus":0.07,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Stassun et al. 2017","ref_year":2017},{"parameter":"semi_major_axis","value":1.92,"value_text":null,"unit":"au","err_plus":0.05,"err_minus":0.05,"band":null,"method":"Radial Velocity","source":"nasa-exo","reference":"Johnson et al. 2011","ref_year":2011}],"orbit":null,"exoplanet":{"object_id":6145,"pl_name":"HD 18742 b","hostname":"HD 18742","sy_pnum":1,"disc_method":"Radial Velocity","disc_year":2011,"disc_facility":"W. M. Keck Observatory","orbper_d":766.0,"orbsmax_au":1.82,"rade":13.1,"radj":1.17,"masse":1080.622,"massj":3.4,"dens_gcm3":2.64,"eccen":0.04,"insol":4.1964,"eqt_k":399.93,"st_teff":4940.0,"st_rad":5.13,"st_mass":1.36,"st_spectype":"G8/K0 IV","sy_dist_pc":162.685,"updated_at":"2026-10-04T05:08:08.462019+00:00"},"sources":[]}