{"id":2350274,"slug":"cl-westerlund-1-w-23a","name":"Cl* Westerlund 1 W 23a","domain":"deep-sky","class":"star","otype":"s*b","otype_label":"BlueSG","ra":251.76074013775582,"dec":-45.85247285922333,"coo_err_mas":0.0501,"coo_bibcode":"2020yCat.1350....0G","plx_mas":0.1635,"pmra":-2.317,"pmdec":-3.298,"rv_kms":-50.78,"redshift":-0.00016936951,"dist_pc":null,"vmag":18.316,"bmag":22.1,"gmag":14.023279,"jmag":8.92,"kmag":7.351,"sp_type":"B2Ia+B:I?","morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":20,"simbad_oid":3522397,"gaia_dr3":5940106758703255168,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-10-06T14:01:35.659231+00:00","views":34,"first_seen":"2026-08-14T16:51:23.133425+00:00","updated_at":"2026-08-14T16:51:23.133425+00:00","identifiers":["2MASS J16470256-4551088","ALS 20159","[B2007] J164702.57-455108.9","Cl* Westerlund 1 W 23","Cl* Westerlund 1 W 23a","Gaia DR2 5940106758703255168","Gaia DR3 5940106758703255168","TIC 237063522"],"measurements":[{"parameter":"distance","value":1479.9022,"value_text":null,"unit":"pc","err_plus":null,"err_minus":null,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"effective_temperature","value":3796.6624,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"magnitude","value":14.023279,"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":14.023279,"value_text":null,"unit":"mag","err_plus":0.00302,"err_minus":0.00302,"band":"G","method":"V","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"magnitude","value":22.1,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"B","method":"V","source":"simbad","reference":"2020A&A...635A.187C","ref_year":2020},{"parameter":"magnitude","value":14.986,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"R","method":"V","source":"simbad","reference":"2007AJ....133.2696B","ref_year":2007},{"parameter":"magnitude","value":18.316,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"V","method":"V","source":"simbad","reference":"2007AJ....133.2696B","ref_year":2007},{"parameter":"magnitude","value":12.081,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"I","method":"V","source":"simbad","reference":"2007AJ....133.2696B","ref_year":2007},{"parameter":"magnitude","value":7.882,"value_text":null,"unit":"mag","err_plus":0.031,"err_minus":0.031,"band":"H","method":null,"source":"simbad","reference":"2003yCat.2246....0C","ref_year":2003},{"parameter":"magnitude","value":8.92,"value_text":null,"unit":"mag","err_plus":0.021,"err_minus":0.021,"band":"J","method":null,"source":"simbad","reference":"2003yCat.2246....0C","ref_year":2003},{"parameter":"magnitude","value":7.351,"value_text":null,"unit":"mag","err_plus":0.029,"err_minus":0.029,"band":"K","method":null,"source":"simbad","reference":"2003yCat.2246....0C","ref_year":2003},{"parameter":"metallicity","value":-0.6092,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"parallax","value":0.16348096435502368,"value_text":null,"unit":"mas","err_plus":0.05354706,"err_minus":0.05354706,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"parallax","value":0.1635,"value_text":null,"unit":"mas","err_plus":0.0535,"err_minus":0.0535,"band":null,"method":null,"source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"parallax","value":0.0094,"value_text":null,"unit":"mas","err_plus":0.1207,"err_minus":0.1207,"band":null,"method":null,"source":"simbad","reference":"2018yCat.1345....0G","ref_year":2018},{"parameter":"pm_dec","value":-3.29821963297395,"value_text":null,"unit":"mas/yr","err_plus":0.057833754,"err_minus":0.057833754,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"pm_dec","value":-3.298,"value_text":null,"unit":"mas/yr","err_plus":0.058,"err_minus":0.058,"band":null,"method":"ICRS","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"pm_dec","value":-3.374,"value_text":null,"unit":"mas/yr","err_plus":0.209,"err_minus":0.209,"band":null,"method":"ICRS","source":"simbad","reference":"2018yCat.1345....0G","ref_year":2018},{"parameter":"pm_ra","value":-2.316832331973833,"value_text":null,"unit":"mas/yr","err_plus":0.07189811,"err_minus":0.07189811,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"pm_ra","value":-2.317,"value_text":null,"unit":"mas/yr","err_plus":0.072,"err_minus":0.072,"band":null,"method":"ICRS","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"pm_ra","value":-1.792,"value_text":null,"unit":"mas/yr","err_plus":0.27,"err_minus":0.27,"band":null,"method":"ICRS","source":"simbad","reference":"2018yCat.1345....0G","ref_year":2018},{"parameter":"radial_velocity","value":-50.78,"value_text":null,"unit":"km/s","err_plus":0.52,"err_minus":0.52,"band":null,"method":"v","source":"simbad","reference":"2022A&A...660A..89R","ref_year":2022},{"parameter":"ruwe","value":0.98542804,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"sed_flux","value":5.26e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:V","method":"J/MNRAS/504/2968/tablea2","source":"vizier","reference":"J/MNRAS/504/2968/tablea2","ref_year":null},{"parameter":"sed_flux","value":3.05e-06,"value_text":null,"unit":"Jy","err_plus":1e-08,"err_minus":1e-08,"band":"Johnson:V","method":"J/AJ/145/46/table4","source":"vizier","reference":"J/AJ/145/46/table4","ref_year":null},{"parameter":"sed_flux","value":0.0811,"value_text":null,"unit":"Jy","err_plus":0.0045,"err_minus":0.0045,"band":"2MASS:Ks","method":"J/MNRAS/472/1760/table1","source":"vizier","reference":"J/MNRAS/472/1760/table1","ref_year":null},{"parameter":"sed_flux","value":0.0761,"value_text":null,"unit":"Jy","err_plus":0.0007,"err_minus":0.0007,"band":"2MASS:H","method":"J/MNRAS/472/1760/table1","source":"vizier","reference":"J/MNRAS/472/1760/table1","ref_year":null},{"parameter":"sed_flux","value":0.0371,"value_text":null,"unit":"Jy","err_plus":0.0017,"err_minus":0.0017,"band":"2MASS:J","method":"J/MNRAS/472/1760/table1","source":"vizier","reference":"J/MNRAS/472/1760/table1","ref_year":null},{"parameter":"sed_flux","value":0.033,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"J/MNRAS/504/2968/tablea2","source":"vizier","reference":"J/MNRAS/504/2968/tablea2","ref_year":null},{"parameter":"sed_flux","value":0.739,"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":0.427,"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":0.00841,"value_text":null,"unit":"Jy","err_plus":0.00187,"err_minus":0.00187,"band":"POSS-II:F","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":6.62e-05,"value_text":null,"unit":"Jy","err_plus":1.35e-05,"err_minus":1.35e-05,"band":"POSS-II:J","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":0.774,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"2MASS:Ks","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.739,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"2MASS:H","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.426,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"2MASS:J","method":"I/317/sample","source":"vizier","reference":"I/317/sample","ref_year":null},{"parameter":"sed_flux","value":0.774,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:Ks","method":"I/320/spm4","source":"vizier","reference":"I/320/spm4","ref_year":null},{"parameter":"sed_flux","value":0.739,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:H","method":"I/320/spm4","source":"vizier","reference":"I/320/spm4","ref_year":null},{"parameter":"sed_flux","value":0.426,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"2MASS:J","method":"I/320/spm4","source":"vizier","reference":"I/320/spm4","ref_year":null},{"parameter":"sed_flux","value":0.00536,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:V","method":"I/320/spm4","source":"vizier","reference":"I/320/spm4","ref_year":null},{"parameter":"sed_flux","value":0.00074,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:B","method":"I/320/spm4","source":"vizier","reference":"I/320/spm4","ref_year":null},{"parameter":"sed_flux","value":0.000196,"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":0.00106,"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":0.00296,"value_text":null,"unit":"Jy","err_plus":4e-05,"err_minus":4e-05,"band":"GAIA/GAIA2:Grp","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":2.96e-05,"value_text":null,"unit":"Jy","err_plus":2e-06,"err_minus":2e-06,"band":"GAIA/GAIA2:Gbp","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":0.0272,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"GAIA/GAIA3:Grp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":0.00794,"value_text":null,"unit":"Jy","err_plus":2e-05,"err_minus":2e-05,"band":"GAIA/GAIA3:G","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":0.000291,"value_text":null,"unit":"Jy","err_plus":4e-06,"err_minus":4e-06,"band":"GAIA/GAIA3:Gbp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":4.94e-05,"value_text":null,"unit":"Jy","err_plus":4.4e-06,"err_minus":4.4e-06,"band":"Gaia:G","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.774,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"2MASS:Ks","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.739,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"2MASS:H","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.426,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"2MASS:J","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.0272,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"GAIA/GAIA3:Grp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.00794,"value_text":null,"unit":"Jy","err_plus":2e-05,"err_minus":2e-05,"band":"GAIA/GAIA3:G","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.000291,"value_text":null,"unit":"Jy","err_plus":4e-06,"err_minus":4e-06,"band":"GAIA/GAIA3:Gbp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":0.0247,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Cousins:I","method":"I/360/syntphot","source":"vizier","reference":"I/360/syntphot","ref_year":null},{"parameter":"sed_flux","value":0.0711,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"SDSS:i","method":"I/360/syntphot","source":"vizier","reference":"I/360/syntphot","ref_year":null},{"parameter":"sed_flux","value":0.00338,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Cousins:R","method":"I/360/syntphot","source":"vizier","reference":"I/360/syntphot","ref_year":null},{"parameter":"sed_flux","value":0.00119,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"SDSS:r","method":"I/360/syntphot","source":"vizier","reference":"I/360/syntphot","ref_year":null},{"parameter":"sed_flux","value":0.000227,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Cousins:V","method":"I/360/syntphot","source":"vizier","reference":"I/360/syntphot","ref_year":null},{"parameter":"sed_flux","value":0.749,"value_text":null,"unit":"Jy","err_plus":0.02,"err_minus":0.02,"band":"Johnson:K","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.732,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"Johnson:H","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.435,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"Johnson:J","method":"II/246/out","source":"vizier","reference":"II/246/out","ref_year":null},{"parameter":"sed_flux","value":0.13,"value_text":null,"unit":"Jy","err_plus":0.007,"err_minus":0.007,"band":"Spitzer/IRAC:8.0","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.245,"value_text":null,"unit":"Jy","err_plus":0.009,"err_minus":0.009,"band":"Spitzer/IRAC:5.8","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.334,"value_text":null,"unit":"Jy","err_plus":0.036,"err_minus":0.036,"band":"Spitzer/IRAC:4.5","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.403,"value_text":null,"unit":"Jy","err_plus":0.025,"err_minus":0.025,"band":"Spitzer/IRAC:3.6","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.749,"value_text":null,"unit":"Jy","err_plus":0.02,"err_minus":0.02,"band":"Johnson:K","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.732,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"Johnson:H","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.435,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"Johnson:J","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.0388,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:J","method":"II/337/vvv1","source":"vizier","reference":"II/337/vvv1","ref_year":null},{"parameter":"sed_flux","value":0.0587,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:Y","method":"II/337/vvv1","source":"vizier","reference":"II/337/vvv1","ref_year":null},{"parameter":"sed_flux","value":0.0463,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:Z","method":"II/337/vvv1","source":"vizier","reference":"II/337/vvv1","ref_year":null},{"parameter":"sed_flux","value":0.0587,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:Y","method":"II/348/vvv2","source":"vizier","reference":"II/348/vvv2","ref_year":null},{"parameter":"sed_flux","value":0.0463,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:Z","method":"II/348/vvv2","source":"vizier","reference":"II/348/vvv2","ref_year":null},{"parameter":"sed_flux","value":0.0315,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:J","method":"II/348/vvv2","source":"vizier","reference":"II/348/vvv2","ref_year":null},{"parameter":"sed_flux","value":0.0109,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"VISTA:H","method":"II/348/vvv2","source":"vizier","reference":"II/348/vvv2","ref_year":null},{"parameter":"sed_flux","value":0.01,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"VISTA:H","method":"II/376/vvv4","source":"vizier","reference":"II/376/vvv4","ref_year":null},{"parameter":"sed_flux","value":0.0154,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"VISTA:Ks","method":"II/376/vvv4","source":"vizier","reference":"II/376/vvv4","ref_year":null},{"parameter":"sed_flux","value":0.0387,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:J","method":"II/376/vvv4","source":"vizier","reference":"II/376/vvv4","ref_year":null},{"parameter":"sed_flux","value":0.0559,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:Y","method":"II/376/vvv4","source":"vizier","reference":"II/376/vvv4","ref_year":null},{"parameter":"sed_flux","value":0.0409,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"VISTA:Z","method":"II/376/vvv4","source":"vizier","reference":"II/376/vvv4","ref_year":null},{"parameter":"sed_flux","value":0.00122,"value_text":null,"unit":"Jy","err_plus":8e-05,"err_minus":8e-05,"band":"SkyMapper/SkyMapper:r","method":"II/379/smssdr4","source":"vizier","reference":"II/379/smssdr4","ref_year":null},{"parameter":"sed_flux","value":0.0285,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"SkyMapper/SkyMapper:i","method":"II/379/smssdr4","source":"vizier","reference":"II/379/smssdr4","ref_year":null},{"parameter":"sed_flux","value":0.000175,"value_text":null,"unit":"Jy","err_plus":1.4e-05,"err_minus":1.4e-05,"band":"SkyMapper/SkyMapper:g","method":"II/379/smssdr4","source":"vizier","reference":"II/379/smssdr4","ref_year":null},{"parameter":"sed_flux","value":0.00078,"value_text":null,"unit":"Jy","err_plus":0.000273,"err_minus":0.000273,"band":"VISTA:Ks","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":0.00016,"value_text":null,"unit":"Jy","err_plus":5.4e-05,"err_minus":5.4e-05,"band":"VISTA:J","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":0.000589,"value_text":null,"unit":"Jy","err_plus":3.8e-05,"err_minus":3.8e-05,"band":"VISTA:Z","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":0.00024,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"Gaia:G","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.774,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"2MASS:Ks","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.732,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"Johnson:H","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.435,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"Johnson:J","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.000186,"value_text":null,"unit":"Jy","err_plus":9e-05,"err_minus":9e-05,"band":"Johnson:B","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":0.774,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"2MASS:Ks","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.732,"value_text":null,"unit":"Jy","err_plus":0.021,"err_minus":0.021,"band":"Johnson:H","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.435,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"Johnson:J","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.0073,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"Gaia:G","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.000186,"value_text":null,"unit":"Jy","err_plus":9e-05,"err_minus":9e-05,"band":"Johnson:B","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":0.739,"value_text":null,"unit":"Jy","err_plus":0.048,"err_minus":0.048,"band":"Johnson:K","method":"B/denis/denis","source":"vizier","reference":"B/denis/denis","ref_year":null},{"parameter":"sed_flux","value":0.451,"value_text":null,"unit":"Jy","err_plus":0.042,"err_minus":0.042,"band":"Johnson:J","method":"B/denis/denis","source":"vizier","reference":"B/denis/denis","ref_year":null},{"parameter":"sed_flux","value":0.0259,"value_text":null,"unit":"Jy","err_plus":0.001,"err_minus":0.001,"band":"Cousins:I","method":"B/denis/denis","source":"vizier","reference":"B/denis/denis","ref_year":null},{"parameter":"sed_flux","value":0.000968,"value_text":null,"unit":"Jy","err_plus":4e-06,"err_minus":4e-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":0.739,"value_text":null,"unit":"Jy","err_plus":0.018,"err_minus":0.018,"band":"2MASS:H","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.426,"value_text":null,"unit":"Jy","err_plus":0.005,"err_minus":0.005,"band":"2MASS:J","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.0286,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GAIA/GAIA2:Grp","method":"J/ApJS/245/13/table1","source":"vizier","reference":"J/ApJS/245/13/table1","ref_year":null},{"parameter":"sed_flux","value":0.0073,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"J/ApJS/245/13/table1","source":"vizier","reference":"J/ApJS/245/13/table1","ref_year":null},{"parameter":"sed_flux","value":0.000294,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"GAIA/GAIA2:Gbp","method":"J/ApJS/245/13/table1","source":"vizier","reference":"J/ApJS/245/13/table1","ref_year":null},{"parameter":"sed_flux","value":0.0073,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"J/A+A/618/A93/members","source":"vizier","reference":"J/A+A/618/A93/members","ref_year":null},{"parameter":"sed_flux","value":0.0379,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Cousins:I","method":"J/A+A/635/A187/tablea1","source":"vizier","reference":"J/A+A/635/A187/tablea1","ref_year":null},{"parameter":"sed_flux","value":0.00335,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Cousins:R","method":"J/A+A/635/A187/tablea1","source":"vizier","reference":"J/A+A/635/A187/tablea1","ref_year":null},{"parameter":"sed_flux","value":0.000264,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:V","method":"J/A+A/635/A187/tablea1","source":"vizier","reference":"J/A+A/635/A187/tablea1","ref_year":null},{"parameter":"sed_flux","value":6.16e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:B","method":"J/A+A/635/A187/tablea1","source":"vizier","reference":"J/A+A/635/A187/tablea1","ref_year":null},{"parameter":"sed_flux","value":0.0401,"value_text":null,"unit":"Jy","err_plus":0.0004,"err_minus":0.0004,"band":"Johnson:J","method":"J/A+A/647/A169/catalog","source":"vizier","reference":"J/A+A/647/A169/catalog","ref_year":null},{"parameter":"sed_flux","value":0.0321,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"Gaia:G","method":"J/A+A/664/A146/tableb1","source":"vizier","reference":"J/A+A/664/A146/tableb1","ref_year":null},{"parameter":"sed_flux","value":0.00742,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"J/A+A/677/A137/catalog","source":"vizier","reference":"J/A+A/677/A137/catalog","ref_year":null},{"parameter":"sed_flux","value":0.00742,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"J/A+A/711/A67/table2","source":"vizier","reference":"J/A+A/711/A67/table2","ref_year":null},{"parameter":"sed_flux","value":3.73e-05,"value_text":null,"unit":"Jy","err_plus":3.2e-06,"err_minus":3.2e-06,"band":"Cousins:I","method":"J/AJ/145/46/table4","source":"vizier","reference":"J/AJ/145/46/table4","ref_year":null},{"parameter":"spectral_type","value":null,"value_text":"B2Ia+BI?","unit":null,"err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2020A&A...635A.187C","ref_year":2020},{"parameter":"spectral_type","value":null,"value_text":"B2Ia+B:I?","unit":null,"err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2010A&A...516A..78N","ref_year":2010},{"parameter":"spectral_type","value":null,"value_text":"O9.5/B0.5Iae","unit":null,"err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2005A&A...434..949C","ref_year":2005},{"parameter":"surface_gravity","value":0.5575,"value_text":null,"unit":"log(cm/s2)","err_plus":null,"err_minus":null,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"variability_period","value":40.46,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"SB1","source":"simbad","reference":"2022A&A...660A..89R","ref_year":2022}],"orbit":null,"exoplanet":null,"sources":[{"source":"gaia-dr3","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-S?Gaia%20DR3%205940106758703255168","fetched_at":"2026-10-06T14:01:28.504052+00:00"},{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=Cl* Westerlund 1 W 23a","fetched_at":"2026-10-06T14:01:28.118553+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=251.760740%20-45.852473&-c.rs=5","fetched_at":"2026-10-06T14:01:35.657251+00:00"}]}