{"id":4256,"slug":"psr-b1257-12-d","name":"PSR B1257+12 d","domain":"exoplanet","class":"exoplanet","otype":null,"otype_label":"Exoplanet","ra":195.0149029,"dec":12.6823534,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":600.0,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":36,"simbad_oid":2049996,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":"PSR B1257+12 d","host_object_id":2054026,"depth":1,"deep_at":"2026-10-11T01:31:53.094621+00:00","views":14,"first_seen":"2026-08-14T16:25:51.971135+00:00","updated_at":"2026-11-01T03:29:49.418757+00:00","identifiers":["Phobetor","PSR B1257+12d"],"measurements":[{"parameter":"eccentricity","value":0.0264,"value_text":null,"unit":null,"err_plus":0.0009,"err_minus":0.0009,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan 1994","ref_year":1994},{"parameter":"eccentricity","value":0.02,"value_text":null,"unit":null,"err_plus":0.006,"err_minus":0.006,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan et al. 1992","ref_year":1992},{"parameter":"mass","value":3.9,"value_text":null,"unit":"M_earth","err_plus":0.2,"err_minus":0.2,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Konacki and Wolszczan 2003","ref_year":2003},{"parameter":"mass","value":2.8,"value_text":null,"unit":"M_earth","err_plus":null,"err_minus":null,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan 1994","ref_year":1994},{"parameter":"mass","value":2.8,"value_text":null,"unit":"M_earth","err_plus":null,"err_minus":null,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan et al. 1992","ref_year":1992},{"parameter":"orbital_period","value":98.2114,"value_text":null,"unit":"d","err_plus":0.0002,"err_minus":0.0002,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Konacki and Wolszczan 2003","ref_year":2003},{"parameter":"orbital_period","value":98.223,"value_text":null,"unit":"d","err_plus":0.002,"err_minus":0.002,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan 1994","ref_year":1994},{"parameter":"orbital_period","value":98.234,"value_text":null,"unit":"d","err_plus":0.021,"err_minus":0.021,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan et al. 1992","ref_year":1992},{"parameter":"sed_flux","value":0.02,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=400MHz","method":"B/psr/psr","source":"vizier","reference":"B/psr/psr","ref_year":null},{"parameter":"sed_flux","value":0.002,"value_text":null,"unit":"Jy","err_plus":0.001,"err_minus":0.001,"band":":=1.4GHz","method":"B/psr/psr","source":"vizier","reference":"B/psr/psr","ref_year":null},{"parameter":"semi_major_axis","value":0.46,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Konacki and Wolszczan 2003","ref_year":2003},{"parameter":"semi_major_axis","value":0.47,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan 1994","ref_year":1994},{"parameter":"semi_major_axis","value":0.47,"value_text":null,"unit":"au","err_plus":null,"err_minus":null,"band":null,"method":"Pulsar Timing","source":"nasa-exo","reference":"Wolszczan et al. 1992","ref_year":1992}],"orbit":null,"exoplanet":{"object_id":4256,"pl_name":"PSR B1257+12 d","hostname":"PSR B1257+12","sy_pnum":3,"disc_method":"Pulsar Timing","disc_year":1992,"disc_facility":"Arecibo Observatory","orbper_d":98.2114,"orbsmax_au":0.46,"rade":1.8,"radj":0.161,"masse":3.9,"massj":0.01227071,"dens_gcm3":3.67,"eccen":0.0264,"insol":null,"eqt_k":null,"st_teff":null,"st_rad":null,"st_mass":1.4,"st_spectype":null,"sy_dist_pc":600.0,"updated_at":"2026-11-01T03:29:49.418757+00:00"},"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=PSR B1257+12 d","fetched_at":"2026-10-11T01:31:45.668878+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=195.014903%20+12.682353&-c.rs=5","fetched_at":"2026-10-11T01:31:53.090478+00:00"}]}