{"id":1916069,"slug":"grb-050820a","name":"GRB 050820A","domain":"deep-sky","class":"source","otype":"gB","otype_label":"gammaBurst","ra":337.4087916666667,"dec":19.560305555555555,"coo_err_mas":500.0,"coo_bibcode":"2009ApJ...690..163R","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":257144.17,"redshift":2.6137,"dist_pc":null,"vmag":18.47,"bmag":19.0,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":413,"simbad_oid":1471283,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-09-06T03:31:56.661414+00:00","views":14,"first_seen":"2026-08-14T16:50:33.190276+00:00","updated_at":"2026-08-14T16:50:33.190276+00:00","identifiers":["GRB 050820","GRB 050820A"],"measurements":[{"parameter":"magnitude","value":18.47,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"V","method":"V","source":"simbad","reference":"2009ApJ...690..163R","ref_year":2009},{"parameter":"magnitude","value":18.33,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"U","method":"V","source":"simbad","reference":"2009ApJ...690..163R","ref_year":2009},{"parameter":"magnitude","value":19.0,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"B","method":"V","source":"simbad","reference":"2009ApJ...690..163R","ref_year":2009},{"parameter":"radial_velocity","value":2.6137,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"z","source":"simbad","reference":"2019ApJ...884...66G","ref_year":2019},{"parameter":"sed_flux","value":2.33e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"GAIA/GAIA2:G","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":5.17e-05,"value_text":null,"unit":"Jy","err_plus":2.2e-06,"err_minus":2.2e-06,"band":"GAIA/GAIA3:Grp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":2.39e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"GAIA/GAIA3:G","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":1.06e-05,"value_text":null,"unit":"Jy","err_plus":1.9e-06,"err_minus":1.9e-06,"band":"GAIA/GAIA3:Gbp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":0.00339,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W4","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000234,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W3","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":2.91e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W2","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":4.57e-05,"value_text":null,"unit":"Jy","err_plus":4.8e-06,"err_minus":4.8e-06,"band":"WISE:W1","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":7.11e-05,"value_text":null,"unit":"Jy","err_plus":1.2e-06,"err_minus":1.2e-06,"band":"SDSS:z","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":5.02e-05,"value_text":null,"unit":"Jy","err_plus":5e-07,"err_minus":5e-07,"band":"SDSS:i","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":2.13e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"Gaia:G","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":2.15e-05,"value_text":null,"unit":"Jy","err_plus":3e-07,"err_minus":3e-07,"band":"SDSS:r","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":6.35e-06,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"SDSS:g","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":7.3e-08,"value_text":null,"unit":"Jy","err_plus":3.21e-08,"err_minus":3.21e-08,"band":"SDSS:u","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":5.17e-05,"value_text":null,"unit":"Jy","err_plus":2.2e-06,"err_minus":2.2e-06,"band":"GAIA/GAIA3:Grp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":2.42e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"GAIA/GAIA3:G","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":1.06e-05,"value_text":null,"unit":"Jy","err_plus":1.9e-06,"err_minus":1.9e-06,"band":"GAIA/GAIA3:Gbp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.00339,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W4","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.000234,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W3","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":2.91e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W2","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":4.57e-05,"value_text":null,"unit":"Jy","err_plus":4.8e-06,"err_minus":4.8e-06,"band":"WISE:W1","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":2.02e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"UVOT:V","method":"II/339/uvotssc1","source":"vizier","reference":"II/339/uvotssc1","ref_year":null},{"parameter":"sed_flux","value":2.49e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"UVOT:B","method":"II/339/uvotssc1","source":"vizier","reference":"II/339/uvotssc1","ref_year":null},{"parameter":"sed_flux","value":5.01e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"UVOT:U","method":"II/339/uvotssc1","source":"vizier","reference":"II/339/uvotssc1","ref_year":null},{"parameter":"sed_flux","value":2.62e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"UVOT:UVW1","method":"II/339/uvotssc1","source":"vizier","reference":"II/339/uvotssc1","ref_year":null},{"parameter":"sed_flux","value":9.9e-06,"value_text":null,"unit":"Jy","err_plus":5.3e-07,"err_minus":5.3e-07,"band":"PAN-STARRS/PS1:z","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":9.11e-06,"value_text":null,"unit":"Jy","err_plus":4.5e-07,"err_minus":4.5e-07,"band":"PAN-STARRS/PS1:i","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":6.3e-06,"value_text":null,"unit":"Jy","err_plus":4.4e-07,"err_minus":4.4e-07,"band":"PAN-STARRS/PS1:r","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":5.06e-06,"value_text":null,"unit":"Jy","err_plus":9e-07,"err_minus":9e-07,"band":"PAN-STARRS/PS1:g","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":8.9e-05,"value_text":null,"unit":"Jy","err_plus":3.1e-06,"err_minus":3.1e-06,"band":"PAN-STARRS/PS1:y","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":1.69e-05,"value_text":null,"unit":"Jy","err_plus":2.1e-06,"err_minus":2.1e-06,"band":"WISE:W1","method":"II/363/unwise","source":"vizier","reference":"II/363/unwise","ref_year":null},{"parameter":"sed_flux","value":2.84e-05,"value_text":null,"unit":"Jy","err_plus":3.7e-06,"err_minus":3.7e-06,"band":"WISE:W2","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":5.42e-05,"value_text":null,"unit":"Jy","err_plus":2.1e-06,"err_minus":2.1e-06,"band":"WISE:W1","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":6.77e-06,"value_text":null,"unit":"Jy","err_plus":9e-08,"err_minus":9e-08,"band":"Spitzer/IRAC:3.6","method":"II/368/sstsl2","source":"vizier","reference":"II/368/sstsl2","ref_year":null},{"parameter":"sed_flux","value":2.86e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W2","method":"II/368/sstsl2","source":"vizier","reference":"II/368/sstsl2","ref_year":null},{"parameter":"sed_flux","value":4.51e-05,"value_text":null,"unit":"Jy","err_plus":4.7e-06,"err_minus":4.7e-06,"band":"WISE:W1","method":"II/368/sstsl2","source":"vizier","reference":"II/368/sstsl2","ref_year":null},{"parameter":"sed_flux","value":9.9e-06,"value_text":null,"unit":"Jy","err_plus":5.3e-07,"err_minus":5.3e-07,"band":"PAN-STARRS/PS1:z","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":9.11e-06,"value_text":null,"unit":"Jy","err_plus":4.3e-07,"err_minus":4.3e-07,"band":"PAN-STARRS/PS1:i","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":6.3e-06,"value_text":null,"unit":"Jy","err_plus":4.3e-07,"err_minus":4.3e-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":5.06e-06,"value_text":null,"unit":"Jy","err_plus":9e-07,"err_minus":9e-07,"band":"PAN-STARRS/PS1:g","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":8.9e-05,"value_text":null,"unit":"Jy","err_plus":2.8e-06,"err_minus":2.8e-06,"band":"PAN-STARRS/PS1:y","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":8.3e-05,"value_text":null,"unit":"Jy","err_plus":5e-06,"err_minus":5e-06,"band":"SDSS:z","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":5.38e-05,"value_text":null,"unit":"Jy","err_plus":1.4e-06,"err_minus":1.4e-06,"band":"SDSS:i","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":2.13e-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":2.22e-05,"value_text":null,"unit":"Jy","err_plus":9e-07,"err_minus":9e-07,"band":"SDSS:r","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":6.04e-06,"value_text":null,"unit":"Jy","err_plus":5.2e-07,"err_minus":5.2e-07,"band":"SDSS:g","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":8.3e-05,"value_text":null,"unit":"Jy","err_plus":5e-06,"err_minus":5e-06,"band":"SDSS:z","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":5.38e-05,"value_text":null,"unit":"Jy","err_plus":1.4e-06,"err_minus":1.4e-06,"band":"SDSS:i","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":2.13e-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":2.22e-05,"value_text":null,"unit":"Jy","err_plus":9e-07,"err_minus":9e-07,"band":"SDSS:r","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":6.04e-06,"value_text":null,"unit":"Jy","err_plus":5.2e-07,"err_minus":5.2e-07,"band":"SDSS:g","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":8.17e-05,"value_text":null,"unit":"Jy","err_plus":4.9e-06,"err_minus":4.9e-06,"band":"SDSS:z","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":5.37e-05,"value_text":null,"unit":"Jy","err_plus":1.4e-06,"err_minus":1.4e-06,"band":"SDSS:i","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":2.21e-05,"value_text":null,"unit":"Jy","err_plus":9e-07,"err_minus":9e-07,"band":"SDSS:r","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":6.06e-06,"value_text":null,"unit":"Jy","err_plus":5.1e-07,"err_minus":5.1e-07,"band":"SDSS:g","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":7.21e-08,"value_text":null,"unit":"Jy","err_plus":3.17e-08,"err_minus":3.17e-08,"band":"SDSS:u","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":8.72e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=701.0nm","method":"J/ApJ/746/156/table1","source":"vizier","reference":"J/ApJ/746/156/table1","ref_year":null},{"parameter":"sed_flux","value":8.61e-05,"value_text":null,"unit":"Jy","err_plus":2.57e-05,"err_minus":2.57e-05,"band":"POSS-II:i","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":3.47e-05,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"POSS-II:F","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":2.3e-05,"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}],"orbit":null,"exoplanet":null,"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=GRB 050820A","fetched_at":"2026-09-06T03:31:51.094782+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=337.408792%20+19.560306&-c.rs=5","fetched_at":"2026-09-06T03:31:56.659838+00:00"}]}