{"id":1395,"slug":"hip-99770-b","name":"HIP 99770 b","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":303.6338344,"dec":36.8066046,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":40.0765,"vmag":4.94292,"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":"HIP 99770 b","host_object_id":2187427,"depth":0,"deep_at":null,"views":5,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-09-13T03:31:17.289698+00:00","identifiers":[],"measurements":[{"parameter":"eccentricity","value":0.31,"value_text":null,"unit":null,"err_plus":0.06,"err_minus":0.12,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Winterhalder et al. 2025","ref_year":2025},{"parameter":"eccentricity","value":0.25,"value_text":null,"unit":null,"err_plus":0.14,"err_minus":0.16,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Currie et al. 2023","ref_year":2023},{"parameter":"mass","value":5403.082919,"value_text":null,"unit":"M_earth","err_plus":1906.970442,"err_minus":1589.142035,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Winterhalder et al. 2025","ref_year":2025},{"parameter":"mass","value":5117.0373527,"value_text":null,"unit":"M_earth","err_plus":1716.2733978,"err_minus":1589.142035,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Currie et al. 2023","ref_year":2023},{"parameter":"orbital_period","value":18600.0,"value_text":null,"unit":"d","err_plus":6200.0,"err_minus":2800.0,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Currie et al. 2023","ref_year":2023},{"parameter":"semi_major_axis","value":15.8,"value_text":null,"unit":"au","err_plus":1.7,"err_minus":1.0,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Winterhalder et al. 2025","ref_year":2025},{"parameter":"semi_major_axis","value":16.9,"value_text":null,"unit":"au","err_plus":3.4,"err_minus":1.9,"band":null,"method":"Imaging","source":"nasa-exo","reference":"Currie et al. 2023","ref_year":2023}],"orbit":null,"exoplanet":{"object_id":1395,"pl_name":"HIP 99770 b","hostname":"HIP 99770","sy_pnum":1,"disc_method":"Imaging","disc_year":2023,"disc_facility":"Multiple Observatories","orbper_d":18600.0,"orbsmax_au":15.8,"rade":12.2,"radj":1.09,"masse":5403.082919,"massj":17.0,"dens_gcm3":16.4,"eccen":0.31,"insol":0.0555,"eqt_k":135.17,"st_teff":8000.0,"st_rad":1.93986,"st_mass":1.9,"st_spectype":"A5-A6","sy_dist_pc":40.0765,"updated_at":"2026-09-13T03:31:17.289698+00:00"},"sources":[]}