{"id":1671332,"slug":"first-j084454-4-444622","name":"FIRST J084454.4+444622","domain":"deep-sky","class":"agn","otype":"rG","otype_label":"RadioG","ra":131.2270041666667,"dec":44.772777777777776,"coo_err_mas":1000.0,"coo_bibcode":"2015ApJ...801...26H","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":261149.7,"redshift":2.81,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":19.72,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":6,"simbad_oid":540839,"gaia_dr3":null,"jpl_spkid":null,"ned_name":"55W 138","exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-10-21T02:02:42.392587+00:00","views":17,"first_seen":"2026-08-14T16:50:07.010051+00:00","updated_at":"2026-08-14T16:50:07.010051+00:00","identifiers":["FIRST J084454.4+444622","[ISW2010] GMRT J084454+444620","WSTB 55W138","WSTB 64W240","WSTB 64W2401"],"measurements":[{"parameter":"magnitude","value":19.72,"value_text":null,"unit":"mag","err_plus":0.25,"err_minus":0.25,"band":"K","method":"V","source":"simbad","reference":"2007MNRAS.380.1449R","ref_year":2007},{"parameter":"sed_flux","value":2.18e-05,"value_text":null,"unit":"Jy","err_plus":3.9e-06,"err_minus":3.9e-06,"band":"WISE:W2","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":2.61e-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":0.00114,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=1.4GHz","method":"VIII/92/first14","source":"vizier","reference":"VIII/92/first14","ref_year":null},{"parameter":"sed_flux","value":0.00114,"value_text":null,"unit":"Jy","err_plus":0.00023,"err_minus":0.00023,"band":"@{nu}","method":"VIII/104/spectra","source":"vizier","reference":"VIII/104/spectra","ref_year":null},{"parameter":"sed_flux","value":0.00147,"value_text":null,"unit":"Jy","err_plus":0.00015,"err_minus":0.00015,"band":":=1.4GHz","method":"J/ApJ/737/45/table2","source":"vizier","reference":"J/ApJ/737/45/table2","ref_year":null},{"parameter":"sed_flux","value":0.00169,"value_text":null,"unit":"Jy","err_plus":0.00016,"err_minus":0.00016,"band":":=1412MHz","method":"J/A+AS/58/1/table7","source":"vizier","reference":"J/A+AS/58/1/table7","ref_year":null},{"parameter":"sed_flux","value":0.0018,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=1.4GHz","method":"J/MNRAS/404/1719/tablea4","source":"vizier","reference":"J/MNRAS/404/1719/tablea4","ref_year":null},{"parameter":"sed_flux","value":0.0097,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=150MHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.0049,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=327MHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.0025,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=610MHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.0011,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=1.4GHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.0017,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=1412MHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.0018,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=1462MHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.00074,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":":=4860MHz","method":"J/MNRAS/405/436/table3","source":"vizier","reference":"J/MNRAS/405/436/table3","ref_year":null},{"parameter":"sed_flux","value":0.00202,"value_text":null,"unit":"Jy","err_plus":0.00038,"err_minus":0.00038,"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":0.00301,"value_text":null,"unit":"Jy","err_plus":0.00041,"err_minus":0.00041,"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":0.00301,"value_text":null,"unit":"Jy","err_plus":0.00041,"err_minus":0.00041,"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":0.00301,"value_text":null,"unit":"Jy","err_plus":0.00041,"err_minus":0.00041,"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":"ned","url":"https://ned.ipac.caltech.edu/byname?objname=55W 138","fetched_at":"2026-10-21T02:02:35.506051+00:00"},{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=FIRST J084454.4+444622","fetched_at":"2026-10-21T02:02:34.229319+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=131.227004%20+44.772778&-c.rs=5","fetched_at":"2026-10-21T02:02:42.388484+00:00"}]}