{"id":8801,"slug":"mascara-4-b","name":"MASCARA-4 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":147.5800667,"dec":-66.1139253,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":170.696,"vmag":8.191,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":0,"simbad_oid":null,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"MASCARA-4 b","host_object_id":2282445,"depth":0,"deep_at":null,"views":1,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-10-04T05:08:08.462019+00:00","identifiers":[],"measurements":[{"parameter":"eccentricity","value":0.0,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"Dorval et al. 2020","ref_year":2020},{"parameter":"equilibrium_temperature","value":2250.0,"value_text":null,"unit":"K","err_plus":62.0,"err_minus":62.0,"band":null,"method":"Transit","source":"nasa-exo","reference":"Zhang et al. 2022","ref_year":2022},{"parameter":"equilibrium_temperature","value":2332.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Transit","source":"nasa-exo","reference":"ExoFOP","ref_year":2020},{"parameter":"equilibrium_temperature","value":2100.0,"value_text":null,"unit":"K","err_plus":100.0,"err_minus":100.0,"band":null,"method":"Transit","source":"nasa-exo","reference":"Dorval et al. 2020","ref_year":2020},{"parameter":"mass","value":532.36258173,"value_text":null,"unit":"M_earth","err_plus":76.59664609,"err_minus":76.59664609,"band":null,"method":"Transit","source":"nasa-exo","reference":"Zhang et al. 2022","ref_year":2022},{"parameter":"mass","value":985.273,"value_text":null,"unit":"M_earth","err_plus":286.047,"err_minus":286.047,"band":null,"method":"Transit","source":"nasa-exo","reference":"Dorval et al. 2020","ref_year":2020},{"parameter":"orbital_period","value":2.8240759,"value_text":null,"unit":"d","err_plus":5.3e-06,"err_minus":5.3e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Kokori et al. 2023","ref_year":2023},{"parameter":"orbital_period","value":2.8240742,"value_text":null,"unit":"d","err_plus":6.3e-06,"err_minus":6.3e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Ivshina & Winn 2022","ref_year":2022},{"parameter":"orbital_period","value":2.8240932,"value_text":null,"unit":"d","err_plus":4.6e-06,"err_minus":4.6e-06,"band":null,"method":"Transit","source":"nasa-exo","reference":"Zhang et al. 2022","ref_year":2022},{"parameter":"orbital_period","value":2.8240691,"value_text":null,"unit":"d","err_plus":5e-07,"err_minus":5e-07,"band":null,"method":"Transit","source":"nasa-exo","reference":"ExoFOP","ref_year":2020},{"parameter":"orbital_period","value":2.82406,"value_text":null,"unit":"d","err_plus":3e-05,"err_minus":3e-05,"band":null,"method":"Transit","source":"nasa-exo","reference":"Dorval et al. 2020","ref_year":2020},{"parameter":"radius","value":16.98160576,"value_text":null,"unit":"R_earth","err_plus":0.49319515,"err_minus":0.49319515,"band":null,"method":"Transit","source":"nasa-exo","reference":"Zhang et al. 2022","ref_year":2022},{"parameter":"radius","value":17.14977,"value_text":null,"unit":"R_earth","err_plus":0.78463,"err_minus":0.44836,"band":null,"method":"Transit","source":"nasa-exo","reference":"Dorval et al. 2020","ref_year":2020},{"parameter":"radius","value":17.7861,"value_text":null,"unit":"R_earth","err_plus":0.566327,"err_minus":0.566327,"band":null,"method":"Transit","source":"nasa-exo","reference":"ExoFOP","ref_year":2020},{"parameter":"semi_major_axis","value":0.0474,"value_text":null,"unit":"au","err_plus":0.0013,"err_minus":0.0013,"band":null,"method":"Transit","source":"nasa-exo","reference":"Zhang et al. 2022","ref_year":2022},{"parameter":"semi_major_axis","value":0.047,"value_text":null,"unit":"au","err_plus":0.004,"err_minus":0.004,"band":null,"method":"Transit","source":"nasa-exo","reference":"Dorval et al. 2020","ref_year":2020}],"orbit":null,"exoplanet":{"object_id":8801,"pl_name":"MASCARA-4 b","hostname":"MASCARA-4","sy_pnum":1,"disc_method":"Transit","disc_year":2020,"disc_facility":"Multiple Observatories","orbper_d":2.8240932,"orbsmax_au":0.0474,"rade":16.98160576,"radj":1.515,"masse":532.36258173,"massj":1.675,"dens_gcm3":0.481,"eccen":0.0,"insol":4913.69,"eqt_k":2250.0,"st_teff":7800.0,"st_rad":1.79,"st_mass":1.75,"st_spectype":"A7 V","sy_dist_pc":170.696,"updated_at":"2026-10-04T05:08:08.462019+00:00"},"sources":[]}