{"id":2213185,"slug":"psr-b1937-21-4","name":"PSR B1937+21.4","domain":"deep-sky","class":"star","otype":"Psr","otype_label":"Pulsar","ra":294.9106670666667,"dec":21.5830932,"coo_err_mas":0.13,"coo_bibcode":"2003A&A...410L...9C","plx_mas":null,"pmra":-0.05,"pmdec":-0.47,"rv_kms":null,"redshift":null,"dist_pc":null,"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":1163,"simbad_oid":2789895,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-09-12T11:30:16.896638+00:00","views":16,"first_seen":"2026-08-14T16:51:05.817432+00:00","updated_at":"2026-09-13T03:31:46.301398+00:00","identifiers":["1FGL J1938.2+2125c","4FGL J1939.6+2135","PSR B1937+21","PSR B1937+21.4","PSR J1939+2134"],"measurements":[{"parameter":"sed_flux","value":0.00375,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:J","method":"I/297/out","source":"vizier","reference":"I/297/out","ref_year":null},{"parameter":"sed_flux","value":0.00814,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:H","method":"I/297/out","source":"vizier","reference":"I/297/out","ref_year":null},{"parameter":"sed_flux","value":0.00033,"value_text":null,"unit":"Jy","err_plus":0.000141,"err_minus":0.000141,"band":"POSS-II:i","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":4.75e-05,"value_text":null,"unit":"Jy","err_plus":2.26e-05,"err_minus":2.26e-05,"band":"POSS-II:F","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.00813,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"2MASS:H","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"2MASS:J","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.00011,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"I/337/gaia","source":"vizier","reference":"I/337/gaia","ref_year":null},{"parameter":"sed_flux","value":0.00813,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"2MASS:H","method":"I/339/hsoy","source":"vizier","reference":"I/339/hsoy","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"2MASS:J","method":"I/339/hsoy","source":"vizier","reference":"I/339/hsoy","ref_year":null},{"parameter":"sed_flux","value":0.00011,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"Gaia:G","method":"I/339/hsoy","source":"vizier","reference":"I/339/hsoy","ref_year":null},{"parameter":"sed_flux","value":0.00033,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"GAIA/GAIA2:Grp","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":0.000102,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"GAIA/GAIA2:G","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":1.26e-05,"value_text":null,"unit":"Jy","err_plus":2.9e-06,"err_minus":2.9e-06,"band":"GAIA/GAIA2:Gbp","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":0.000305,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"GAIA/GAIA3:Grp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":9.98e-05,"value_text":null,"unit":"Jy","err_plus":3e-07,"err_minus":3e-07,"band":"GAIA/GAIA3:G","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":1.23e-05,"value_text":null,"unit":"Jy","err_plus":1.5e-06,"err_minus":1.5e-06,"band":"GAIA/GAIA3:Gbp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":0.12,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"WISE:W4","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.0295,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"WISE:W3","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00217,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"band":"WISE:W2","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00532,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":"WISE:W1","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00814,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"2MASS:H","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"2MASS:J","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000591,"value_text":null,"unit":"Jy","err_plus":2e-06,"err_minus":2e-06,"band":"SDSS:z","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000195,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"SDSS:i","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.07e-05,"value_text":null,"unit":"Jy","err_plus":2.3e-06,"err_minus":2.3e-06,"band":"Gaia:G","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":3.08e-05,"value_text":null,"unit":"Jy","err_plus":5e-07,"err_minus":5e-07,"band":"SDSS:r","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000305,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"GAIA/GAIA3:Grp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.000102,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"GAIA/GAIA3:G","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":1.23e-05,"value_text":null,"unit":"Jy","err_plus":1.5e-06,"err_minus":1.5e-06,"band":"GAIA/GAIA3:Gbp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.00797,"value_text":null,"unit":"Jy","err_plus":0.00017,"err_minus":0.00017,"band":"Johnson:K","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.0081,"value_text":null,"unit":"Jy","err_plus":5e-05,"err_minus":5e-05,"band":"Johnson:H","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.00368,"value_text":null,"unit":"Jy","err_plus":7e-05,"err_minus":7e-05,"band":"Johnson:J","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.002,"value_text":null,"unit":"Jy","err_plus":0.00024,"err_minus":0.00024,"band":"Spitzer/IRAC:5.8","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00306,"value_text":null,"unit":"Jy","err_plus":0.00021,"err_minus":0.00021,"band":"Spitzer/IRAC:4.5","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00464,"value_text":null,"unit":"Jy","err_plus":0.00021,"err_minus":0.00021,"band":"Spitzer/IRAC:3.6","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00815,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":"Johnson:K","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00832,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":":=2.17um","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00793,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":":=1.65um","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00806,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"Johnson:H","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00378,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":":=1.250um","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.00382,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"Johnson:J","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.0268,"value_text":null,"unit":"Jy","err_plus":0.003,"err_minus":0.003,"band":"WISE:W4","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.0144,"value_text":null,"unit":"Jy","err_plus":0.0005,"err_minus":0.0005,"band":"WISE:W3","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00367,"value_text":null,"unit":"Jy","err_plus":9e-05,"err_minus":9e-05,"band":"WISE:W2","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00525,"value_text":null,"unit":"Jy","err_plus":0.00014,"err_minus":0.00014,"band":"WISE:W1","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00813,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"2MASS:H","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"2MASS:J","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00781,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"UKIDSS:K","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null},{"parameter":"sed_flux","value":0.0078,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"UKIDSS:H","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null},{"parameter":"sed_flux","value":0.00387,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"UKIDSS:J","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null},{"parameter":"sed_flux","value":0.000221,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"INT/WFC:i","method":"II/321/iphas2","source":"vizier","reference":"II/321/iphas2","ref_year":null},{"parameter":"sed_flux","value":4.91e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"INT/WFC:Ha","method":"II/321/iphas2","source":"vizier","reference":"II/321/iphas2","ref_year":null},{"parameter":"sed_flux","value":3.03e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"INT/WFC:r","method":"II/321/iphas2","source":"vizier","reference":"II/321/iphas2","ref_year":null},{"parameter":"sed_flux","value":0.12,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"WISE:W4","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.0295,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"WISE:W3","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00217,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"band":"WISE:W2","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00532,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":"WISE:W1","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00813,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"2MASS:H","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"2MASS:J","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00118,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"PAN-STARRS/PS1:y","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.000591,"value_text":null,"unit":"Jy","err_plus":2e-06,"err_minus":2e-06,"band":"PAN-STARRS/PS1:z","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.000195,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"PAN-STARRS/PS1:i","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":3.07e-05,"value_text":null,"unit":"Jy","err_plus":5e-07,"err_minus":5e-07,"band":"PAN-STARRS/PS1:r","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":2.37e-07,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"PAN-STARRS/PS1:g","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.0025,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"WISE:W2","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":0.00735,"value_text":null,"unit":"Jy","err_plus":7e-05,"err_minus":7e-05,"band":"WISE:W1","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":0.00118,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"PAN-STARRS/PS1:y","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.000591,"value_text":null,"unit":"Jy","err_plus":2e-06,"err_minus":2e-06,"band":"PAN-STARRS/PS1:z","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.000195,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"PAN-STARRS/PS1:i","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":3.07e-05,"value_text":null,"unit":"Jy","err_plus":5e-07,"err_minus":5e-07,"band":"PAN-STARRS/PS1:r","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":2.37e-07,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"PAN-STARRS/PS1:g","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.12,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"WISE:W4","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.0295,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"WISE:W3","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00217,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"band":"WISE:W2","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00532,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":"WISE:W1","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00806,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"Johnson:H","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00382,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"Johnson:J","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":9.37e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"Gaia:G","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.12,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"WISE:W4","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.0295,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"WISE:W3","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00217,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"band":"WISE:W2","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00532,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":"WISE:W1","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00806,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"Johnson:H","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00382,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"Johnson:J","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":9.37e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"Gaia:G","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.000437,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"VI/137/gum_mw","source":"vizier","reference":"VI/137/gum_mw","ref_year":null},{"parameter":"sed_flux","value":0.0132,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":":=1.4GHz","method":"B/psr/psr","source":"vizier","reference":"B/psr/psr","ref_year":null},{"parameter":"sed_flux","value":0.00813,"value_text":null,"unit":"Jy","err_plus":0.00021,"err_minus":0.00021,"band":"2MASS:H","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":9e-05,"err_minus":9e-05,"band":"2MASS:J","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.00038,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"Gaia:G","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.0132,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=1.4GHz","method":"J/ApJS/208/17/psrcat","source":"vizier","reference":"J/ApJS/208/17/psrcat","ref_year":null},{"parameter":"sed_flux","value":0.0017,"value_text":null,"unit":"Jy","err_plus":0.00028,"err_minus":0.00028,"band":":=4GHz","method":"J/ApJS/255/30/comp","source":"vizier","reference":"J/ApJS/255/30/comp","ref_year":null},{"parameter":"sed_flux","value":0.12,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"WISE:W4","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.0295,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"WISE:W3","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00217,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"band":"WISE:W2","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00532,"value_text":null,"unit":"Jy","err_plus":0.00019,"err_minus":0.00019,"band":"WISE:W1","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00843,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"2MASS:Ks","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00814,"value_text":null,"unit":"Jy","err_plus":0.00022,"err_minus":0.00022,"band":"2MASS:H","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00374,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"2MASS:J","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00033,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GAIA/GAIA2:Grp","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":9.37e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":1.26e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GAIA/GAIA2:Gbp","method":"J/A+A/638/A21/sample","source":"vizier","reference":"J/A+A/638/A21/sample","ref_year":null},{"parameter":"sed_flux","value":0.00069,"value_text":null,"unit":"Jy","err_plus":8e-05,"err_minus":8e-05,"band":":=5.8GHz","method":"J/A+A/680/A92/table3","source":"vizier","reference":"J/A+A/680/A92/table3","ref_year":null},{"parameter":"sed_flux","value":0.0128,"value_text":null,"unit":"Jy","err_plus":0.0005,"err_minus":0.0005,"band":":=1.3GHz","method":"J/MNRAS/546/F1849/smgpscsc","source":"vizier","reference":"J/MNRAS/546/F1849/smgpscsc","ref_year":null},{"parameter":"sed_flux","value":0.0048,"value_text":null,"unit":"Jy","err_plus":0.0011,"err_minus":0.0011,"band":":=1655.5MHz","method":"J/other/PASA/42.38/sourcesh","source":"vizier","reference":"J/other/PASA/42.38/sourcesh","ref_year":null},{"parameter":"sed_flux","value":0.0352,"value_text":null,"unit":"Jy","err_plus":0.003,"err_minus":0.003,"band":":=943","method":"J/other/PASA/43.89/srdr2","source":"vizier","reference":"J/other/PASA/43.89/srdr2","ref_year":null},{"parameter":"sed_flux","value":0.0352,"value_text":null,"unit":"Jy","err_plus":0.003,"err_minus":0.003,"band":":=943","method":"J/other/PASA/43.89/sources","source":"vizier","reference":"J/other/PASA/43.89/sources","ref_year":null},{"parameter":"sed_flux","value":0.0352,"value_text":null,"unit":"Jy","err_plus":0.003,"err_minus":0.003,"band":":=943","method":"J/other/PASA/43.89/comp","source":"vizier","reference":"J/other/PASA/43.89/comp","ref_year":null}],"orbit":null,"exoplanet":null,"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=PSR B1937+21.4","fetched_at":"2026-09-12T11:30:09.651838+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=294.910667%20+21.583093&-c.rs=5","fetched_at":"2026-09-12T11:30:16.895585+00:00"}]}