{"id":2390897,"slug":"cl-westerlund-1-w-49","name":"Cl* Westerlund 1 W 49","domain":"deep-sky","class":"star","otype":"s*b","otype_label":"BlueSG","ra":251.75792814362995,"dec":-45.84212789822,"coo_err_mas":0.0662,"coo_bibcode":"2020yCat.1350....0G","plx_mas":0.2231,"pmra":-2.191,"pmdec":-3.381,"rv_kms":-38.11,"redshift":-0.00012711319,"dist_pc":null,"vmag":18.76,"bmag":22.6,"gmag":15.797556,"jmag":null,"kmag":null,"sp_type":"B0Iab","morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":16,"simbad_oid":3748673,"gaia_dr3":5940106763014986240,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-10-02T08:46:48.148677+00:00","views":33,"first_seen":"2026-08-14T16:51:27.385664+00:00","updated_at":"2026-09-20T03:26:18.184858+00:00","identifiers":["[B2007] J164701.91-455031.6","Cl* Westerlund 1 W 49","Gaia DR2 5940106763014986240","Gaia DR3 5940106763014986240"],"measurements":[{"parameter":"distance","value":6468.6113,"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":4618.543,"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":15.797556,"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":15.797556,"value_text":null,"unit":"mag","err_plus":0.002952,"err_minus":0.002952,"band":"G","method":"V","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"magnitude","value":18.76,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"V","method":"V","source":"simbad","reference":"2010A&A...516A..78N","ref_year":2010},{"parameter":"magnitude","value":22.6,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"B","method":"V","source":"simbad","reference":"2010A&A...516A..78N","ref_year":2010},{"parameter":"magnitude","value":13.638,"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":16.392,"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":"metallicity","value":-0.6401,"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":0.22310700358202903,"value_text":null,"unit":"mas","err_plus":0.08216778,"err_minus":0.08216778,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"parallax","value":0.2231,"value_text":null,"unit":"mas","err_plus":0.0822,"err_minus":0.0822,"band":null,"method":null,"source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"pm_dec","value":-3.3806937341611674,"value_text":null,"unit":"mas/yr","err_plus":0.082601205,"err_minus":0.082601205,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"pm_dec","value":-3.381,"value_text":null,"unit":"mas/yr","err_plus":0.083,"err_minus":0.083,"band":null,"method":"ICRS","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"pm_dec","value":-3.546,"value_text":null,"unit":"mas/yr","err_plus":0.259,"err_minus":0.259,"band":null,"method":"ICRS","source":"simbad","reference":"2018yCat.1345....0G","ref_year":2018},{"parameter":"pm_ra","value":-2.1909276873246557,"value_text":null,"unit":"mas/yr","err_plus":0.105740555,"err_minus":0.105740555,"band":null,"method":"Gaia DR3","source":"gaia-dr3","reference":"2023A&A...674A...1G","ref_year":2023},{"parameter":"pm_ra","value":-2.191,"value_text":null,"unit":"mas/yr","err_plus":0.106,"err_minus":0.106,"band":null,"method":"ICRS","source":"simbad","reference":"2020yCat.1350....0G","ref_year":2020},{"parameter":"pm_ra","value":-2.49,"value_text":null,"unit":"mas/yr","err_plus":0.357,"err_minus":0.357,"band":null,"method":"ICRS","source":"simbad","reference":"2018yCat.1345....0G","ref_year":2018},{"parameter":"radial_velocity","value":-38.11,"value_text":null,"unit":"km/s","err_plus":1.29,"err_minus":1.29,"band":null,"method":"v","source":"simbad","reference":"2022A&A...660A..89R","ref_year":2022},{"parameter":"ruwe","value":1.3385786,"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":0.00043,"value_text":null,"unit":"Jy","err_plus":0.000116,"err_minus":0.000116,"band":"2MASS:J","method":"J/MNRAS/472/1760/table1","source":"vizier","reference":"J/MNRAS/472/1760/table1","ref_year":null},{"parameter":"sed_flux","value":0.000582,"value_text":null,"unit":"Jy","err_plus":0.00018,"err_minus":0.00018,"band":"2MASS:Ks","method":"J/MNRAS/472/1760/table1","source":"vizier","reference":"J/MNRAS/472/1760/table1","ref_year":null},{"parameter":"sed_flux","value":0.000621,"value_text":null,"unit":"Jy","err_plus":1.7e-05,"err_minus":1.7e-05,"band":"2MASS:H","method":"J/MNRAS/472/1760/table1","source":"vizier","reference":"J/MNRAS/472/1760/table1","ref_year":null},{"parameter":"sed_flux","value":7.12e-06,"value_text":null,"unit":"Jy","err_plus":2.34e-06,"err_minus":2.34e-06,"band":"POSS-II:J","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":9.33e-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":0.000327,"value_text":null,"unit":"Jy","err_plus":3.5e-05,"err_minus":3.5e-05,"band":"GAIA/GAIA2:Grp","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":7.35e-05,"value_text":null,"unit":"Jy","err_plus":3e-07,"err_minus":3e-07,"band":"GAIA/GAIA2:G","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":3.64e-05,"value_text":null,"unit":"Jy","err_plus":4.4e-06,"err_minus":4.4e-06,"band":"GAIA/GAIA2:Gbp","method":"I/345/gaia2","source":"vizier","reference":"I/345/gaia2","ref_year":null},{"parameter":"sed_flux","value":0.000116,"value_text":null,"unit":"Jy","err_plus":1.7e-05,"err_minus":1.7e-05,"band":"GAIA/GAIA3:Grp","method":"I/350/gaiaedr3","source":"vizier","reference":"I/350/gaiaedr3","ref_year":null},{"parameter":"sed_flux","value":6.98e-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":2.23e-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":0.0001,"value_text":null,"unit":"Jy","err_plus":3e-06,"err_minus":3e-06,"band":"Gaia:G","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":0.000116,"value_text":null,"unit":"Jy","err_plus":1.7e-05,"err_minus":1.7e-05,"band":"GAIA/GAIA3:Grp","method":"I/355/gaiadr3","source":"vizier","reference":"I/355/gaiadr3","ref_year":null},{"parameter":"sed_flux","value":7.05e-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":2.23e-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":0.00516,"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":0.0125,"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":0.000976,"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":0.000451,"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":0.000101,"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":0.0462,"value_text":null,"unit":"Jy","err_plus":0.008,"err_minus":0.008,"band":"Spitzer/IRAC:5.8","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.0324,"value_text":null,"unit":"Jy","err_plus":0.0044,"err_minus":0.0044,"band":"Spitzer/IRAC:4.5","method":"II/293/glimpse","source":"vizier","reference":"II/293/glimpse","ref_year":null},{"parameter":"sed_flux","value":0.0368,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"VISTA:J","method":"II/337/vvv1","source":"vizier","reference":"II/337/vvv1","ref_year":null},{"parameter":"sed_flux","value":0.0404,"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":0.0153,"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":0.0368,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"VISTA:J","method":"II/348/vvv2","source":"vizier","reference":"II/348/vvv2","ref_year":null},{"parameter":"sed_flux","value":0.0404,"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":0.0153,"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":0.534,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"WISE:W2","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":2.4,"value_text":null,"unit":"Jy","err_plus":0.05,"err_minus":0.05,"band":"WISE:W1","method":"II/365/catwise","source":"vizier","reference":"II/365/catwise","ref_year":null},{"parameter":"sed_flux","value":0.00145,"value_text":null,"unit":"Jy","err_plus":0.0,"err_minus":0.0,"band":"Gaia:G","method":"II/366/catv2021","source":"vizier","reference":"II/366/catv2021","ref_year":null},{"parameter":"sed_flux","value":0.00627,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:V","method":"II/366/catv2021","source":"vizier","reference":"II/366/catv2021","ref_year":null},{"parameter":"sed_flux","value":0.0135,"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":0.0172,"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":0.0367,"value_text":null,"unit":"Jy","err_plus":0.0001,"err_minus":0.0001,"band":"VISTA:J","method":"II/376/vvv4","source":"vizier","reference":"II/376/vvv4","ref_year":null},{"parameter":"sed_flux","value":0.0314,"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":0.0135,"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":0.000725,"value_text":null,"unit":"Jy","err_plus":0.000358,"err_minus":0.000358,"band":"VISTA:Ks","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":0.000372,"value_text":null,"unit":"Jy","err_plus":7.5e-05,"err_minus":7.5e-05,"band":"VISTA:J","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":0.0002,"value_text":null,"unit":"Jy","err_plus":4.2e-05,"err_minus":4.2e-05,"band":"VISTA:Y","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":0.000231,"value_text":null,"unit":"Jy","err_plus":1e-05,"err_minus":1e-05,"band":"VISTA:Z","method":"II/387/virac2","source":"vizier","reference":"II/387/virac2","ref_year":null},{"parameter":"sed_flux","value":5.84e-05,"value_text":null,"unit":"Jy","err_plus":7e-07,"err_minus":7e-07,"band":"Gaia:G","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":2.44e-05,"value_text":null,"unit":"Jy","err_plus":3.9e-06,"err_minus":3.9e-06,"band":"Johnson:V","method":"IV/38/tic","source":"vizier","reference":"IV/38/tic","ref_year":null},{"parameter":"sed_flux","value":5.84e-05,"value_text":null,"unit":"Jy","err_plus":7e-07,"err_minus":7e-07,"band":"Gaia:G","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":2.44e-05,"value_text":null,"unit":"Jy","err_plus":3.9e-06,"err_minus":3.9e-06,"band":"Johnson:V","method":"IV/39/tic82","source":"vizier","reference":"IV/39/tic82","ref_year":null},{"parameter":"sed_flux","value":7.83e-05,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Gaia:G","method":"VI/137/gum_mw","source":"vizier","reference":"VI/137/gum_mw","ref_year":null},{"parameter":"sed_flux","value":0.0736,"value_text":null,"unit":"Jy","err_plus":0.0068,"err_minus":0.0068,"band":"Johnson:J","method":"B/denis/denis","source":"vizier","reference":"B/denis/denis","ref_year":null},{"parameter":"sed_flux","value":0.00599,"value_text":null,"unit":"Jy","err_plus":0.00028,"err_minus":0.00028,"band":"Cousins:I","method":"B/denis/denis","source":"vizier","reference":"B/denis/denis","ref_year":null},{"parameter":"sed_flux","value":0.000377,"value_text":null,"unit":"Jy","err_plus":3.7e-05,"err_minus":3.7e-05,"band":"Gaia:G","method":"J/ApJ/867/105/refcat2","source":"vizier","reference":"J/ApJ/867/105/refcat2","ref_year":null},{"parameter":"sed_flux","value":0.00574,"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":0.00143,"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":0.000117,"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":0.00143,"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":0.0077,"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":0.00093,"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":0.000114,"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":3.89e-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":0.0167,"value_text":null,"unit":"Jy","err_plus":0.0002,"err_minus":0.0002,"band":"Johnson:K","method":"J/A+A/647/A169/catalog","source":"vizier","reference":"J/A+A/647/A169/catalog","ref_year":null},{"parameter":"sed_flux","value":0.038,"value_text":null,"unit":"Jy","err_plus":0.0003,"err_minus":0.0003,"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":0.00634,"value_text":null,"unit":"Jy","err_plus":6e-05,"err_minus":6e-05,"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":0.00145,"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":0.00145,"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":1.92e-05,"value_text":null,"unit":"Jy","err_plus":4e-06,"err_minus":4e-06,"band":"Cousins:I","method":"J/AJ/145/46/table4","source":"vizier","reference":"J/AJ/145/46/table4","ref_year":null},{"parameter":"sed_flux","value":1.87e-06,"value_text":null,"unit":"Jy","err_plus":3e-08,"err_minus":3e-08,"band":"Johnson:V","method":"J/AJ/145/46/table4","source":"vizier","reference":"J/AJ/145/46/table4","ref_year":null},{"parameter":"spectral_type","value":null,"value_text":"B0Iab","unit":null,"err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2020A&A...635A.187C","ref_year":2020},{"parameter":"surface_gravity","value":1.2778,"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}],"orbit":null,"exoplanet":null,"sources":[{"source":"gaia-dr3","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-S?Gaia%20DR3%205940106763014986240","fetched_at":"2026-10-02T08:46:41.279228+00:00"},{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=Cl* Westerlund 1 W 49","fetched_at":"2026-10-02T08:46:36.508534+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=251.757928%20-45.842128&-c.rs=5","fetched_at":"2026-10-02T08:46:48.144148+00:00"}]}