{"id":1623623,"slug":"z-257-17","name":"Z 257-17","domain":"deep-sky","class":"galaxy","otype":"GiG","otype_label":"GtowardsGroup","ra":297.7251144493699,"dec":48.05969529774,"coo_err_mas":4.0967,"coo_bibcode":"2020yCat.1350....0G","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":7645.123,"redshift":0.025835,"dist_pc":null,"vmag":null,"bmag":14.9,"gmag":19.657877,"jmag":10.959,"kmag":9.99,"sp_type":null,"morph_type":null,"size_maj":0.677,"size_min":0.623,"size_angle":20.0,"nbref":12,"simbad_oid":195309,"gaia_dr3":2086511575017988352,"jpl_spkid":null,"ned_name":"CGCG 257-017","exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-09-21T13:18:45.002022+00:00","views":31,"first_seen":"2026-08-14T16:49:53.050273+00:00","updated_at":"2026-08-14T16:49:53.050273+00:00","identifiers":["2MASX J19505400+4803345","[CHM2007] HDC 1084 J195054.00+4803345","[CHM2007] LDC 1368 J195054.00+4803345","Gaia DR3 2086511575017988352","LEDA 63734","NPM1G +47.0407","UZC J195054.1+480334","Z 1949.5+4756","Z 257-17"],"measurements":[{"parameter":"distance","value":108.45,"value_text":null,"unit":"Mpc","err_plus":null,"err_minus":null,"band":null,"method":"redshift","source":"simbad","reference":"2007ApJ...655..790C","ref_year":2007},{"parameter":"magnitude","value":19.656345,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"G","method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"magnitude","value":19.657877,"value_text":null,"unit":"mag","err_plus":0.016061,"err_minus":0.016061,"band":"G","method":"V","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"magnitude","value":10.959,"value_text":null,"unit":"mag","err_plus":0.019,"err_minus":0.019,"band":"J","method":"V","source":"simbad","reference":"2006AJ....131.1163S","ref_year":2006},{"parameter":"magnitude","value":10.236,"value_text":null,"unit":"mag","err_plus":0.019,"err_minus":0.019,"band":"H","method":"V","source":"simbad","reference":"2006AJ....131.1163S","ref_year":2006},{"parameter":"magnitude","value":9.99,"value_text":null,"unit":"mag","err_plus":0.034,"err_minus":0.034,"band":"K","method":"V","source":"simbad","reference":"2006AJ....131.1163S","ref_year":2006},{"parameter":"magnitude","value":14.9,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"B","method":null,"source":"simbad","reference":null,"ref_year":null},{"parameter":"radial_velocity","value":7781.0,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"v","source":"simbad","reference":"2015AJ....149..171T","ref_year":2015},{"parameter":"radial_velocity","value":7709.0,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"v","source":"simbad","reference":"2007ApJ...655..790C","ref_year":2007},{"parameter":"radial_velocity","value":7709.0,"value_text":null,"unit":"km/s","err_plus":31.0,"err_minus":31.0,"band":null,"method":"cz","source":"simbad","reference":"1999PASP..111..438F","ref_year":1999},{"parameter":"radial_velocity","value":0.025955,"value_text":null,"unit":"km/s","err_plus":0.00017,"err_minus":0.00017,"band":null,"method":"z","source":"simbad","reference":"1995A&AS..114..565P","ref_year":1995},{"parameter":"redshift","value":0.0257140007,"value_text":null,"unit":null,"err_plus":0.000102999998,"err_minus":0.000102999998,"band":null,"method":null,"source":"ned","reference":"1999PASP..111..438F","ref_year":1999},{"parameter":"sed_flux","value":0.0197,"value_text":null,"unit":"Jy","err_plus":0.0005,"err_minus":0.0005,"band":"2MASS:J","method":"I/322A/out","source":"vizier","reference":"I/322A/out","ref_year":null},{"parameter":"sed_flux","value":9.64e-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},{"parameter":"sed_flux","value":0.00467,"value_text":null,"unit":"Jy","err_plus":0.00078,"err_minus":0.00078,"band":"Johnson:B","method":"I/342/f3","source":"vizier","reference":"I/342/f3","ref_year":null},{"parameter":"sed_flux","value":8.44e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"GAIA/GAIA2:G","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":0.000716,"value_text":null,"unit":"Jy","err_plus":1.2e-05,"err_minus":1.2e-05,"band":"GAIA/GAIA3:Grp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":5.03e-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":0.000254,"value_text":null,"unit":"Jy","err_plus":1.1e-05,"err_minus":1.1e-05,"band":"GAIA/GAIA3:Gbp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.031,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:H","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.0197,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:J","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00495,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"SDSS:z","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000756,"value_text":null,"unit":"Jy","err_plus":1.5e-05,"err_minus":1.5e-05,"band":"SDSS:i","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000622,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"SDSS:r","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000749,"value_text":null,"unit":"Jy","err_plus":2.5e-05,"err_minus":2.5e-05,"band":"SDSS:g","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":7.73e-05,"value_text":null,"unit":"Jy","err_plus":3e-07,"err_minus":3e-07,"band":"Gaia:G","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00135,"value_text":null,"unit":"Jy","err_plus":0.00067,"err_minus":0.00067,"band":"WISE:W4","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00273,"value_text":null,"unit":"Jy","err_plus":0.00011,"err_minus":0.00011,"band":"WISE:W3","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.00956,"value_text":null,"unit":"Jy","err_plus":0.00018,"err_minus":0.00018,"band":"WISE:W2","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.018,"value_text":null,"unit":"Jy","err_plus":0.0004,"err_minus":0.0004,"band":"WISE:W1","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000716,"value_text":null,"unit":"Jy","err_plus":1.2e-05,"err_minus":1.2e-05,"band":"GAIA/GAIA3:Grp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":5.04e-05,"value_text":null,"unit":"Jy","err_plus":3e-07,"err_minus":3e-07,"band":"GAIA/GAIA3:G","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.000254,"value_text":null,"unit":"Jy","err_plus":1.1e-05,"err_minus":1.1e-05,"band":"GAIA/GAIA3:Gbp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.0218,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"Johnson:K","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.0269,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"Johnson:H","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.021,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"Johnson:J","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.00285,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W4","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00248,"value_text":null,"unit":"Jy","err_plus":9e-05,"err_minus":9e-05,"band":"WISE:W3","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00955,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"WISE:W2","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.0184,"value_text":null,"unit":"Jy","err_plus":0.0004,"err_minus":0.0004,"band":"WISE:W1","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.031,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:H","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.0197,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:J","method":"II/311/wise","source":"vizier","reference":"II/311/wise","ref_year":null},{"parameter":"sed_flux","value":0.00135,"value_text":null,"unit":"Jy","err_plus":0.00067,"err_minus":0.00067,"band":"WISE:W4","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00273,"value_text":null,"unit":"Jy","err_plus":0.00011,"err_minus":0.00011,"band":"WISE:W3","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.00956,"value_text":null,"unit":"Jy","err_plus":0.00018,"err_minus":0.00018,"band":"WISE:W2","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.018,"value_text":null,"unit":"Jy","err_plus":0.0004,"err_minus":0.0004,"band":"WISE:W1","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.031,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:H","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.0197,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:J","method":"II/328/allwise","source":"vizier","reference":"II/328/allwise","ref_year":null},{"parameter":"sed_flux","value":0.0148,"value_text":null,"unit":"Jy","err_plus":0.0016,"err_minus":0.0016,"band":"SDSS:i'","method":"II/336/apass9","source":"vizier","reference":"II/336/apass9","ref_year":null},{"parameter":"sed_flux","value":0.00961,"value_text":null,"unit":"Jy","err_plus":0.00106,"err_minus":0.00106,"band":"SDSS:r'","method":"II/336/apass9","source":"vizier","reference":"II/336/apass9","ref_year":null},{"parameter":"sed_flux","value":0.00638,"value_text":null,"unit":"Jy","err_plus":0.00052,"err_minus":0.00052,"band":"Johnson:V","method":"II/336/apass9","source":"vizier","reference":"II/336/apass9","ref_year":null},{"parameter":"sed_flux","value":0.00423,"value_text":null,"unit":"Jy","err_plus":0.00071,"err_minus":0.00071,"band":"SDSS:g'","method":"II/336/apass9","source":"vizier","reference":"II/336/apass9","ref_year":null},{"parameter":"sed_flux","value":0.00261,"value_text":null,"unit":"Jy","err_plus":0.00059,"err_minus":0.00059,"band":"Johnson:B","method":"II/336/apass9","source":"vizier","reference":"II/336/apass9","ref_year":null},{"parameter":"sed_flux","value":0.00359,"value_text":null,"unit":"Jy","err_plus":2e-05,"err_minus":2e-05,"band":"PAN-STARRS/PS1:y","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.00495,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"PAN-STARRS/PS1:z","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.000754,"value_text":null,"unit":"Jy","err_plus":1.5e-05,"err_minus":1.5e-05,"band":"PAN-STARRS/PS1:i","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.000619,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"PAN-STARRS/PS1:r","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.000747,"value_text":null,"unit":"Jy","err_plus":2.5e-05,"err_minus":2.5e-05,"band":"PAN-STARRS/PS1:g","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":0.00493,"value_text":null,"unit":"Jy","err_plus":5e-05,"err_minus":5e-05,"band":"WISE:W2","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":0.0137,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"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":1e-05,"err_minus":1e-05,"band":"PAN-STARRS/PS1:z","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.00053,"value_text":null,"unit":"Jy","err_plus":4e-06,"err_minus":4e-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":0.000627,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"PAN-STARRS/PS1:r","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.000301,"value_text":null,"unit":"Jy","err_plus":8e-06,"err_minus":8e-06,"band":"PAN-STARRS/PS1:g","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.00559,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"PAN-STARRS/PS1:y","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":0.00061,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W4","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00442,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W3","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.0156,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W2","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.0297,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W1","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.0681,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:Ks","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.0837,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:H","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.0666,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:J","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":7.73e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"Gaia:G","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00469,"value_text":null,"unit":"Jy","err_plus":0.00305,"err_minus":0.00305,"band":"Johnson:V","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00261,"value_text":null,"unit":"Jy","err_plus":0.00059,"err_minus":0.00059,"band":"Johnson:B","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.00135,"value_text":null,"unit":"Jy","err_plus":0.00067,"err_minus":0.00067,"band":"WISE:W4","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00273,"value_text":null,"unit":"Jy","err_plus":0.00011,"err_minus":0.00011,"band":"WISE:W3","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00956,"value_text":null,"unit":"Jy","err_plus":0.00018,"err_minus":0.00018,"band":"WISE:W2","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.018,"value_text":null,"unit":"Jy","err_plus":0.0004,"err_minus":0.0004,"band":"WISE:W1","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.0307,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"Johnson:H","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.0201,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"Johnson:J","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00469,"value_text":null,"unit":"Jy","err_plus":0.00305,"err_minus":0.00305,"band":"Johnson:V","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.00261,"value_text":null,"unit":"Jy","err_plus":0.00059,"err_minus":0.00059,"band":"Johnson:B","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":7.73e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"Gaia:G","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.0729,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:H","method":"V/133/kic","source":"vizier","reference":"V/133/kic","ref_year":null},{"parameter":"sed_flux","value":0.0564,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:J","method":"V/133/kic","source":"vizier","reference":"V/133/kic","ref_year":null},{"parameter":"sed_flux","value":4.14e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"V/162/dr11m","source":"vizier","reference":"V/162/dr11m","ref_year":null},{"parameter":"sed_flux","value":0.0584,"value_text":null,"unit":"Jy","err_plus":0.002,"err_minus":0.002,"band":"Johnson:K","method":"VII/233/xsc","source":"vizier","reference":"VII/233/xsc","ref_year":null},{"parameter":"sed_flux","value":0.0702,"value_text":null,"unit":"Jy","err_plus":0.0014,"err_minus":0.0014,"band":"Johnson:H","method":"VII/233/xsc","source":"vizier","reference":"VII/233/xsc","ref_year":null},{"parameter":"sed_flux","value":0.0476,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"Johnson:J","method":"VII/233/xsc","source":"vizier","reference":"VII/233/xsc","ref_year":null},{"parameter":"sed_flux","value":0.0729,"value_text":null,"unit":"Jy","err_plus":0.0015,"err_minus":0.0015,"band":"2MASS:H","method":"VII/275/glade1","source":"vizier","reference":"VII/275/glade1","ref_year":null},{"parameter":"sed_flux","value":0.0564,"value_text":null,"unit":"Jy","err_plus":0.001,"err_minus":0.001,"band":"2MASS:J","method":"VII/275/glade1","source":"vizier","reference":"VII/275/glade1","ref_year":null},{"parameter":"sed_flux","value":0.0584,"value_text":null,"unit":"Jy","err_plus":0.002,"err_minus":0.002,"band":"Johnson:K","method":"VII/281/glade2","source":"vizier","reference":"VII/281/glade2","ref_year":null},{"parameter":"sed_flux","value":0.0722,"value_text":null,"unit":"Jy","err_plus":0.0015,"err_minus":0.0015,"band":"Johnson:H","method":"VII/281/glade2","source":"vizier","reference":"VII/281/glade2","ref_year":null},{"parameter":"sed_flux","value":0.0576,"value_text":null,"unit":"Jy","err_plus":0.001,"err_minus":0.001,"band":"Johnson:J","method":"VII/281/glade2","source":"vizier","reference":"VII/281/glade2","ref_year":null},{"parameter":"sed_flux","value":0.0584,"value_text":null,"unit":"Jy","err_plus":0.002,"err_minus":0.002,"band":"Johnson:K","method":"VII/291/gladep","source":"vizier","reference":"VII/291/gladep","ref_year":null},{"parameter":"sed_flux","value":0.0722,"value_text":null,"unit":"Jy","err_plus":0.0015,"err_minus":0.0015,"band":"Johnson:H","method":"VII/291/gladep","source":"vizier","reference":"VII/291/gladep","ref_year":null},{"parameter":"sed_flux","value":0.0576,"value_text":null,"unit":"Jy","err_plus":0.001,"err_minus":0.001,"band":"Johnson:J","method":"VII/291/gladep","source":"vizier","reference":"VII/291/gladep","ref_year":null},{"parameter":"sed_flux","value":0.0627,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:Ks","method":"J/ApJ/655/790/galaxies","source":"vizier","reference":"J/ApJ/655/790/galaxies","ref_year":null},{"parameter":"sed_flux","value":7.72e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"Gaia:G","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.00135,"value_text":null,"unit":"Jy","err_plus":0.00067,"err_minus":0.00067,"band":"WISE:W4","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.00273,"value_text":null,"unit":"Jy","err_plus":0.00011,"err_minus":0.00011,"band":"WISE:W3","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.00956,"value_text":null,"unit":"Jy","err_plus":0.00018,"err_minus":0.00018,"band":"WISE:W2","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.00464,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"band":"Spitzer/IRAC:4.5","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.00795,"value_text":null,"unit":"Jy","err_plus":0.00012,"err_minus":0.00012,"band":"Spitzer/IRAC:3.6","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.018,"value_text":null,"unit":"Jy","err_plus":0.0004,"err_minus":0.0004,"band":"WISE:W1","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.031,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:H","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.0197,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:J","method":"J/ApJS/254/11/spikes","source":"vizier","reference":"J/ApJS/254/11/spikes","ref_year":null},{"parameter":"sed_flux","value":0.000441,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W2","method":"J/A+A/706/A284/regalade","source":"vizier","reference":"J/A+A/706/A284/regalade","ref_year":null},{"parameter":"sed_flux","value":0.0015,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"WISE:W1","method":"J/A+A/706/A284/regalade","source":"vizier","reference":"J/A+A/706/A284/regalade","ref_year":null},{"parameter":"sed_flux","value":0.00341,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"INT/WFC:i","method":"J/AJ/144/24/kisdr2","source":"vizier","reference":"J/AJ/144/24/kisdr2","ref_year":null},{"parameter":"sed_flux","value":0.0025,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"INT/WFC:Ha","method":"J/AJ/144/24/kisdr2","source":"vizier","reference":"J/AJ/144/24/kisdr2","ref_year":null},{"parameter":"sed_flux","value":0.00208,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"INT/WFC:r","method":"J/AJ/144/24/kisdr2","source":"vizier","reference":"J/AJ/144/24/kisdr2","ref_year":null},{"parameter":"sed_flux","value":0.00101,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"INT/WFC:g","method":"J/AJ/144/24/kisdr2","source":"vizier","reference":"J/AJ/144/24/kisdr2","ref_year":null},{"parameter":"sed_flux","value":0.00014,"value_text":null,"unit":"Jy","err_plus":2e-06,"err_minus":2e-06,"band":"INT/WFC:U","method":"J/AJ/144/24/kisdr2","source":"vizier","reference":"J/AJ/144/24/kisdr2","ref_year":null},{"parameter":"sed_flux","value":0.0574,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:K","method":"J/MNRAS/416/2840/catalog","source":"vizier","reference":"J/MNRAS/416/2840/catalog","ref_year":null},{"parameter":"sed_flux","value":0.0845,"value_text":null,"unit":"Jy","err_plus":0.0015,"err_minus":0.0015,"band":"2MASS:H","method":"J/MNRAS/506/1896/hecate","source":"vizier","reference":"J/MNRAS/506/1896/hecate","ref_year":null},{"parameter":"sed_flux","value":0.159,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"2MASS:J","method":"J/MNRAS/506/1896/hecate","source":"vizier","reference":"J/MNRAS/506/1896/hecate","ref_year":null},{"parameter":"sed_flux","value":0.0845,"value_text":null,"unit":"Jy","err_plus":0.0015,"err_minus":0.0015,"band":"2MASS:H","method":"J/MNRAS/548/G522/hecatev2","source":"vizier","reference":"J/MNRAS/548/G522/hecatev2","ref_year":null},{"parameter":"sed_flux","value":0.0652,"value_text":null,"unit":"Jy","err_plus":0.0011,"err_minus":0.0011,"band":"2MASS:J","method":"J/MNRAS/548/G522/hecatev2","source":"vizier","reference":"J/MNRAS/548/G522/hecatev2","ref_year":null},{"parameter":"sed_flux","value":0.031,"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":0.0197,"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":0.944,"value_text":null,"unit":"Jy","err_plus":0.374,"err_minus":0.374,"band":"POSS-II:i","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.609,"value_text":null,"unit":"Jy","err_plus":0.235,"err_minus":0.235,"band":"POSS-II:F","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.227,"value_text":null,"unit":"Jy","err_plus":0.088,"err_minus":0.088,"band":"POSS-II:J","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.184,"value_text":null,"unit":"Jy","err_plus":0.073,"err_minus":0.073,"band":"Johnson:B","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.031,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:H","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.0197,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:J","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.022,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:Ks","method":"I/322A/out","source":"vizier","reference":"I/322A/out","ref_year":null},{"parameter":"sed_flux","value":0.031,"value_text":null,"unit":"Jy","err_plus":0.0006,"err_minus":0.0006,"band":"2MASS:H","method":"I/322A/out","source":"vizier","reference":"I/322A/out","ref_year":null}],"orbit":null,"exoplanet":null,"sources":[{"source":"gaia-dr3","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-S?Gaia%20DR3%202086511575017988352","fetched_at":"2026-09-21T13:18:36.380570+00:00"},{"source":"ned","url":"https://ned.ipac.caltech.edu/byname?objname=CGCG 257-017","fetched_at":"2026-09-21T13:18:37.847730+00:00"},{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=Z 257-17","fetched_at":"2026-09-21T13:18:31.325185+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=297.725114%20+48.059695&-c.rs=5","fetched_at":"2026-09-21T13:18:45.000104+00:00"}]}