{"id":3454712,"slug":"sdss-j142022-38-521231-4","name":"SDSS J142022.38+521231.4","domain":"deep-sky","class":"quasar","otype":"QSO","otype_label":"QSO","ra":215.093285,"dec":52.208739,"coo_err_mas":null,"coo_bibcode":"2017A&A...597A..79P","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":240049.25,"redshift":2.006,"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":5,"simbad_oid":13257045,"gaia_dr3":null,"jpl_spkid":null,"ned_name":"WISEA J142022.39+521231.2","exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-10-22T23:23:06.260648+00:00","views":16,"first_seen":"2026-08-14T16:53:49.521253+00:00","updated_at":"2026-08-14T16:53:49.521253+00:00","identifiers":["SDSS J142022.37+521231.2","SDSS J142022.38+521231.4"],"measurements":[{"parameter":"magnitude","value":21.5019,"value_text":null,"unit":"mag","err_plus":0.0992,"err_minus":0.0992,"band":"i","method":"A","source":"simbad","reference":"2020ApJS..250....8L","ref_year":2020},{"parameter":"magnitude","value":20.9942,"value_text":null,"unit":"mag","err_plus":0.217,"err_minus":0.217,"band":"z","method":"A","source":"simbad","reference":"2020ApJS..250....8L","ref_year":2020},{"parameter":"magnitude","value":23.3812,"value_text":null,"unit":"mag","err_plus":0.4399,"err_minus":0.4399,"band":"u","method":"A","source":"simbad","reference":"2020ApJS..250....8L","ref_year":2020},{"parameter":"magnitude","value":22.2697,"value_text":null,"unit":"mag","err_plus":0.096,"err_minus":0.096,"band":"g","method":"A","source":"simbad","reference":"2020ApJS..250....8L","ref_year":2020},{"parameter":"magnitude","value":22.1751,"value_text":null,"unit":"mag","err_plus":0.1212,"err_minus":0.1212,"band":"r","method":"A","source":"simbad","reference":"2020ApJS..250....8L","ref_year":2020},{"parameter":"radial_velocity","value":2.006,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"z","source":"simbad","reference":"2020ApJS..250....8L","ref_year":2020},{"parameter":"radial_velocity","value":2.006,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"z","source":"simbad","reference":"2018A&A...613A..51P","ref_year":2018},{"parameter":"radial_velocity","value":2.006848,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"z","source":"simbad","reference":"2017A&A...597A..79P","ref_year":2017},{"parameter":"redshift","value":2.00576,"value_text":null,"unit":null,"err_plus":0.000349664,"err_minus":0.000349664,"band":null,"method":null,"source":"ned","reference":"2024AJ....168...58D","ref_year":2024},{"parameter":"sed_flux","value":6.39e-06,"value_text":null,"unit":"Jy","err_plus":2.7e-07,"err_minus":2.7e-07,"band":"SDSS:g","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.66e-06,"value_text":null,"unit":"Jy","err_plus":1.18e-06,"err_minus":1.18e-06,"band":"SDSS:u","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00167,"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":0.00036,"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":9.56e-05,"value_text":null,"unit":"Jy","err_plus":8.2e-06,"err_minus":8.2e-06,"band":"WISE:W2","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":6.66e-05,"value_text":null,"unit":"Jy","err_plus":4.1e-06,"err_minus":4.1e-06,"band":"WISE:W1","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":1.38e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"PAN-STARRS/PS1:z","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":9.91e-06,"value_text":null,"unit":"Jy","err_plus":4.8e-07,"err_minus":4.8e-07,"band":"PAN-STARRS/PS1:i","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":7.83e-06,"value_text":null,"unit":"Jy","err_plus":6e-07,"err_minus":6e-07,"band":"PAN-STARRS/PS1:r","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":6.37e-06,"value_text":null,"unit":"Jy","err_plus":2.7e-07,"err_minus":2.7e-07,"band":"PAN-STARRS/PS1:g","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":9.2e-05,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"WISE:W2","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":7.63e-05,"value_text":null,"unit":"Jy","err_plus":2e-06,"err_minus":2e-06,"band":"WISE:W1","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":1.38e-05,"value_text":null,"unit":"Jy","err_plus":1.2e-06,"err_minus":1.2e-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":9.91e-06,"value_text":null,"unit":"Jy","err_plus":5.2e-07,"err_minus":5.2e-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":7.83e-06,"value_text":null,"unit":"Jy","err_plus":6.5e-07,"err_minus":6.5e-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":6.37e-06,"value_text":null,"unit":"Jy","err_plus":3.1e-07,"err_minus":3.1e-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":1.63e-05,"value_text":null,"unit":"Jy","err_plus":3.5e-06,"err_minus":3.5e-06,"band":"SDSS:z","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":1.01e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"SDSS:i","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":5.51e-06,"value_text":null,"unit":"Jy","err_plus":6.4e-07,"err_minus":6.4e-07,"band":"SDSS:r","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":4.91e-06,"value_text":null,"unit":"Jy","err_plus":4.5e-07,"err_minus":4.5e-07,"band":"SDSS:g","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":1.64e-06,"value_text":null,"unit":"Jy","err_plus":1.17e-06,"err_minus":1.17e-06,"band":"SDSS:u","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":8.99e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W2","method":"V/161/zcatdr1","source":"vizier","reference":"V/161/zcatdr1","ref_year":null},{"parameter":"sed_flux","value":5.46e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W1","method":"V/161/zcatdr1","source":"vizier","reference":"V/161/zcatdr1","ref_year":null},{"parameter":"sed_flux","value":1.3e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CTIO/DECam:z","method":"V/161/zcatdr1","source":"vizier","reference":"V/161/zcatdr1","ref_year":null},{"parameter":"sed_flux","value":6.98e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CTIO/DECam:r","method":"V/161/zcatdr1","source":"vizier","reference":"V/161/zcatdr1","ref_year":null},{"parameter":"sed_flux","value":4.74e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CTIO/DECam:g","method":"V/161/zcatdr1","source":"vizier","reference":"V/161/zcatdr1","ref_year":null},{"parameter":"sed_flux","value":0.00167,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W4","method":"VII/279/dr12q","source":"vizier","reference":"VII/279/dr12q","ref_year":null},{"parameter":"sed_flux","value":0.00036,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W3","method":"VII/279/dr12q","source":"vizier","reference":"VII/279/dr12q","ref_year":null},{"parameter":"sed_flux","value":9.56e-05,"value_text":null,"unit":"Jy","err_plus":8.2e-06,"err_minus":8.2e-06,"band":"WISE:W2","method":"VII/279/dr12q","source":"vizier","reference":"VII/279/dr12q","ref_year":null},{"parameter":"sed_flux","value":6.66e-05,"value_text":null,"unit":"Jy","err_plus":4.1e-06,"err_minus":4.1e-06,"band":"WISE:W1","method":"VII/279/dr12q","source":"vizier","reference":"VII/279/dr12q","ref_year":null},{"parameter":"sed_flux","value":2.24e-07,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GALEX:NUV","method":"VII/279/dr12q","source":"vizier","reference":"VII/279/dr12q","ref_year":null},{"parameter":"sed_flux","value":3.05e-07,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GALEX:FUV","method":"VII/279/dr12q","source":"vizier","reference":"VII/279/dr12q","ref_year":null},{"parameter":"sed_flux","value":0.00167,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"WISE:W4","method":"VII/286/dr14q","source":"vizier","reference":"VII/286/dr14q","ref_year":null},{"parameter":"sed_flux","value":0.00036,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W3","method":"VII/286/dr14q","source":"vizier","reference":"VII/286/dr14q","ref_year":null},{"parameter":"sed_flux","value":9.56e-05,"value_text":null,"unit":"Jy","err_plus":8.2e-06,"err_minus":8.2e-06,"band":"WISE:W2","method":"VII/286/dr14q","source":"vizier","reference":"VII/286/dr14q","ref_year":null},{"parameter":"sed_flux","value":6.66e-05,"value_text":null,"unit":"Jy","err_plus":4.1e-06,"err_minus":4.1e-06,"band":"WISE:W1","method":"VII/286/dr14q","source":"vizier","reference":"VII/286/dr14q","ref_year":null},{"parameter":"sed_flux","value":0.000119,"value_text":null,"unit":"Jy","err_plus":7e-06,"err_minus":7e-06,"band":"WISE:W2","method":"VII/289/dr16q","source":"vizier","reference":"VII/289/dr16q","ref_year":null},{"parameter":"sed_flux","value":8.87e-05,"value_text":null,"unit":"Jy","err_plus":3.2e-06,"err_minus":3.2e-06,"band":"WISE:W1","method":"VII/289/dr16q","source":"vizier","reference":"VII/289/dr16q","ref_year":null},{"parameter":"sed_flux","value":2.24e-07,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GALEX:NUV","method":"VII/289/dr16q","source":"vizier","reference":"VII/289/dr16q","ref_year":null},{"parameter":"sed_flux","value":1.67e-06,"value_text":null,"unit":"Jy","err_plus":6.1e-07,"err_minus":6.1e-07,"band":"Subaru/Suprime:IA856","method":"VII/299/help","source":"vizier","reference":"VII/299/help","ref_year":null},{"parameter":"sed_flux","value":9e-05,"value_text":null,"unit":"Jy","err_plus":3.6e-06,"err_minus":3.6e-06,"band":"WISE:W2","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":5.92e-05,"value_text":null,"unit":"Jy","err_plus":1.7e-06,"err_minus":1.7e-06,"band":"WISE:W1","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":1.45e-05,"value_text":null,"unit":"Jy","err_plus":2.9e-06,"err_minus":2.9e-06,"band":"SDSS:z","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":9.13e-06,"value_text":null,"unit":"Jy","err_plus":8.4e-07,"err_minus":8.4e-07,"band":"SDSS:i","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":4.92e-06,"value_text":null,"unit":"Jy","err_plus":5.5e-07,"err_minus":5.5e-07,"band":"SDSS:r","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":4.5e-06,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"SDSS:g","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":1.63e-06,"value_text":null,"unit":"Jy","err_plus":6.8e-07,"err_minus":6.8e-07,"band":"SDSS:u","method":"J/ApJS/264/9/rmphot","source":"vizier","reference":"J/ApJS/264/9/rmphot","ref_year":null},{"parameter":"sed_flux","value":1.46e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CFHT/Megacam:z","method":"J/A+A/552/A124/tablee2","source":"vizier","reference":"J/A+A/552/A124/tablee2","ref_year":null},{"parameter":"sed_flux","value":1.15e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CFHT/Megacam:i","method":"J/A+A/552/A124/tablee2","source":"vizier","reference":"J/A+A/552/A124/tablee2","ref_year":null},{"parameter":"sed_flux","value":7.68e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CFHT/Megacam:r","method":"J/A+A/552/A124/tablee2","source":"vizier","reference":"J/A+A/552/A124/tablee2","ref_year":null},{"parameter":"sed_flux","value":6.27e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CFHT/Megacam:g","method":"J/A+A/552/A124/tablee2","source":"vizier","reference":"J/A+A/552/A124/tablee2","ref_year":null},{"parameter":"sed_flux","value":3.91e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"CFHT/Megacam:u","method":"J/A+A/552/A124/tablee2","source":"vizier","reference":"J/A+A/552/A124/tablee2","ref_year":null},{"parameter":"sed_flux","value":7.22e-06,"value_text":null,"unit":"Jy","err_plus":2.6e-07,"err_minus":2.6e-07,"band":"WISE:W1","method":"J/MNRAS/465/1831/griw","source":"vizier","reference":"J/MNRAS/465/1831/griw","ref_year":null},{"parameter":"sed_flux","value":1.63e-05,"value_text":null,"unit":"Jy","err_plus":3.5e-06,"err_minus":3.5e-06,"band":"SDSS:z","method":"J/MNRAS/465/1831/griw","source":"vizier","reference":"J/MNRAS/465/1831/griw","ref_year":null},{"parameter":"sed_flux","value":1.01e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"SDSS:i","method":"J/MNRAS/465/1831/griw","source":"vizier","reference":"J/MNRAS/465/1831/griw","ref_year":null},{"parameter":"sed_flux","value":5.53e-06,"value_text":null,"unit":"Jy","err_plus":6.4e-07,"err_minus":6.4e-07,"band":"SDSS:r","method":"J/MNRAS/465/1831/griw","source":"vizier","reference":"J/MNRAS/465/1831/griw","ref_year":null},{"parameter":"sed_flux","value":4.93e-06,"value_text":null,"unit":"Jy","err_plus":4.5e-07,"err_minus":4.5e-07,"band":"SDSS:g","method":"J/MNRAS/465/1831/griw","source":"vizier","reference":"J/MNRAS/465/1831/griw","ref_year":null},{"parameter":"sed_flux","value":1.66e-06,"value_text":null,"unit":"Jy","err_plus":1.18e-06,"err_minus":1.18e-06,"band":"SDSS:u","method":"J/MNRAS/465/1831/griw","source":"vizier","reference":"J/MNRAS/465/1831/griw","ref_year":null},{"parameter":"sed_flux","value":4.19e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"SDSS:u","method":"J/MNRAS/493/2745/dr14quv","source":"vizier","reference":"J/MNRAS/493/2745/dr14quv","ref_year":null},{"parameter":"sed_flux","value":9.07e-08,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GALEX:NUV","method":"J/MNRAS/493/2745/dr14quv","source":"vizier","reference":"J/MNRAS/493/2745/dr14quv","ref_year":null},{"parameter":"sed_flux","value":3.05e-07,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GALEX:FUV","method":"VII/289/dr16q","source":"vizier","reference":"VII/289/dr16q","ref_year":null},{"parameter":"sed_flux","value":6.15e-08,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GALEX:FUV","method":"J/MNRAS/493/2745/dr14quv","source":"vizier","reference":"J/MNRAS/493/2745/dr14quv","ref_year":null},{"parameter":"sed_flux","value":8.97e-06,"value_text":null,"unit":"Jy","err_plus":4.09e-06,"err_minus":4.09e-06,"band":"POSS-II:J","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.00167,"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":0.00036,"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":9.56e-05,"value_text":null,"unit":"Jy","err_plus":8.2e-06,"err_minus":8.2e-06,"band":"WISE:W2","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":6.66e-05,"value_text":null,"unit":"Jy","err_plus":4.1e-06,"err_minus":4.1e-06,"band":"WISE:W1","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.38e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"SDSS:z","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":9.94e-06,"value_text":null,"unit":"Jy","err_plus":4.8e-07,"err_minus":4.8e-07,"band":"SDSS:i","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":7.86e-06,"value_text":null,"unit":"Jy","err_plus":6e-07,"err_minus":6e-07,"band":"SDSS:r","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null}],"orbit":null,"exoplanet":null,"sources":[{"source":"ned","url":"https://ned.ipac.caltech.edu/byname?objname=WISEA J142022.39+521231.2","fetched_at":"2026-10-22T23:23:00.249599+00:00"},{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=SDSS J142022.38+521231.4","fetched_at":"2026-10-22T23:22:59.020416+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=215.093285%20+52.208739&-c.rs=5","fetched_at":"2026-10-22T23:23:06.253176+00:00"}]}