{"id":2637006,"slug":"mdr2009-v2","name":"[MDR2009] V2","domain":"deep-sky","class":"star","otype":"RR*","otype_label":"RRLyrae","ra":173.232587,"dec":-0.558263,"coo_err_mas":null,"coo_bibcode":"2020ApJS..249....3A","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":132.4,"redshift":0.00044173643,"dist_pc":null,"vmag":21.46,"bmag":21.86,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":6,"simbad_oid":5472814,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-08-26T03:14:56.451396+00:00","views":12,"first_seen":"2026-08-14T16:51:56.328251+00:00","updated_at":"2026-09-13T03:31:46.301398+00:00","identifiers":["EPIC 210282472","HiTS J113256-003329","[KCG2013] LeoIV 383 269","[MDR2009] V2"],"measurements":[{"parameter":"distance","value":156.0,"value_text":null,"unit":"kpc","err_plus":null,"err_minus":null,"band":null,"method":"RRLyr","source":"simbad","reference":"2018ApJ...855...43M","ref_year":2018},{"parameter":"effective_temperature","value":5644.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2013ApJ...779..102K","ref_year":2013},{"parameter":"magnitude","value":21.5,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"g","method":"A","source":"simbad","reference":"2018ApJ...855...43M","ref_year":2018},{"parameter":"magnitude","value":21.445,"value_text":null,"unit":"mag","err_plus":0.06,"err_minus":0.06,"band":"r","method":"A","source":"simbad","reference":"2013ApJ...779..102K","ref_year":2013},{"parameter":"magnitude","value":21.338,"value_text":null,"unit":"mag","err_plus":0.082,"err_minus":0.082,"band":"i","method":"A","source":"simbad","reference":"2013ApJ...779..102K","ref_year":2013},{"parameter":"magnitude","value":21.86,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"B","method":"V","source":"simbad","reference":"2009ApJ...699L.125M","ref_year":2009},{"parameter":"magnitude","value":21.46,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"V","method":"V","source":"simbad","reference":"2009ApJ...699L.125M","ref_year":2009},{"parameter":"metallicity","value":-2.37,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2013ApJ...779..102K","ref_year":2013},{"parameter":"sed_flux","value":8.28e-06,"value_text":null,"unit":"Jy","err_plus":8e-08,"err_minus":8e-08,"band":"Johnson:B","method":"J/ApJ/710/1664/table1","source":"vizier","reference":"J/ApJ/710/1664/table1","ref_year":null},{"parameter":"sed_flux","value":8.06e-06,"value_text":null,"unit":"Jy","err_plus":null,"err_minus":null,"band":"Johnson:J","method":"VII/299/help","source":"vizier","reference":"VII/299/help","ref_year":null},{"parameter":"sed_flux","value":1.26e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"Subaru/Suprime:IA856","method":"VII/299/help","source":"vizier","reference":"VII/299/help","ref_year":null},{"parameter":"sed_flux","value":1.01e-05,"value_text":null,"unit":"Jy","err_plus":1e-07,"err_minus":1e-07,"band":"Johnson:V","method":"J/ApJ/710/1664/table1","source":"vizier","reference":"J/ApJ/710/1664/table1","ref_year":null},{"parameter":"sed_flux","value":8.18e-06,"value_text":null,"unit":"Jy","err_plus":4.15e-06,"err_minus":4.15e-06,"band":"POSS-II:J","method":"I/305/out","source":"vizier","reference":"I/305/out","ref_year":null},{"parameter":"sed_flux","value":8.24e-06,"value_text":null,"unit":"Jy","err_plus":1.85e-06,"err_minus":1.85e-06,"band":"2MASS:J","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.34e-05,"value_text":null,"unit":"Jy","err_plus":1.5e-06,"err_minus":1.5e-06,"band":"VISTA:Y","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.52e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"SDSS:z","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.06e-05,"value_text":null,"unit":"Jy","err_plus":8e-07,"err_minus":8e-07,"band":"VISTA:Z","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.33e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"SDSS:i","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":9.52e-06,"value_text":null,"unit":"Jy","err_plus":4.8e-07,"err_minus":4.8e-07,"band":"SDSS:r","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":1.21e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"SDSS:g","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":2.91e-06,"value_text":null,"unit":"Jy","err_plus":2.2e-07,"err_minus":2.2e-07,"band":"SDSS:u","method":"I/353/gsc242","source":"vizier","reference":"I/353/gsc242","ref_year":null},{"parameter":"sed_flux","value":501.0,"value_text":null,"unit":"Jy","err_plus":66.0,"err_minus":66.0,"band":"VISTA:Ks","method":"II/343/viking2","source":"vizier","reference":"II/343/viking2","ref_year":null},{"parameter":"sed_flux","value":1910.0,"value_text":null,"unit":"Jy","err_plus":480.0,"err_minus":480.0,"band":"VISTA:J","method":"II/343/viking2","source":"vizier","reference":"II/343/viking2","ref_year":null},{"parameter":"sed_flux","value":1.26e-06,"value_text":null,"unit":"Jy","err_plus":4.2e-07,"err_minus":4.2e-07,"band":"SDSS:i","method":"II/347/kids_dr3","source":"vizier","reference":"II/347/kids_dr3","ref_year":null},{"parameter":"sed_flux","value":8.97e-07,"value_text":null,"unit":"Jy","err_plus":1.23e-07,"err_minus":1.23e-07,"band":"SDSS:r","method":"II/347/kids_dr3","source":"vizier","reference":"II/347/kids_dr3","ref_year":null},{"parameter":"sed_flux","value":5.6e-07,"value_text":null,"unit":"Jy","err_plus":1.38e-07,"err_minus":1.38e-07,"band":"SDSS:g","method":"II/347/kids_dr3","source":"vizier","reference":"II/347/kids_dr3","ref_year":null},{"parameter":"sed_flux","value":2.91e-06,"value_text":null,"unit":"Jy","err_plus":2.2e-07,"err_minus":2.2e-07,"band":"SDSS:u","method":"II/347/kids_dr3","source":"vizier","reference":"II/347/kids_dr3","ref_year":null},{"parameter":"sed_flux","value":1.52e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"PAN-STARRS/PS1:z","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":1.33e-05,"value_text":null,"unit":"Jy","err_plus":4e-07,"err_minus":4e-07,"band":"PAN-STARRS/PS1:i","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":9.49e-06,"value_text":null,"unit":"Jy","err_plus":4.8e-07,"err_minus":4.8e-07,"band":"PAN-STARRS/PS1:r","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":1.2e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-06,"band":"PAN-STARRS/PS1:g","method":"II/349/ps1","source":"vizier","reference":"II/349/ps1","ref_year":null},{"parameter":"sed_flux","value":1.52e-05,"value_text":null,"unit":"Jy","err_plus":2e-07,"err_minus":2e-07,"band":"PAN-STARRS/PS1:z","method":"II/389/ps1_dr2","source":"vizier","reference":"II/389/ps1_dr2","ref_year":null},{"parameter":"sed_flux","value":1.33e-05,"value_text":null,"unit":"Jy","err_plus":5e-07,"err_minus":5e-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":9.49e-06,"value_text":null,"unit":"Jy","err_plus":4.7e-07,"err_minus":4.7e-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":1.2e-05,"value_text":null,"unit":"Jy","err_plus":1e-06,"err_minus":1e-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":1.56e-05,"value_text":null,"unit":"Jy","err_plus":4.2e-06,"err_minus":4.2e-06,"band":"SDSS:z","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":9.58e-06,"value_text":null,"unit":"Jy","err_plus":1.08e-06,"err_minus":1.08e-06,"band":"SDSS:i","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":8.32e-06,"value_text":null,"unit":"Jy","err_plus":7.7e-07,"err_minus":7.7e-07,"band":"SDSS:r","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":7.38e-06,"value_text":null,"unit":"Jy","err_plus":5e-07,"err_minus":5e-07,"band":"SDSS:g","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"sed_flux","value":1.09e-06,"value_text":null,"unit":"Jy","err_plus":9.2e-07,"err_minus":9.2e-07,"band":"SDSS:u","method":"V/154/sdss16","source":"vizier","reference":"V/154/sdss16","ref_year":null},{"parameter":"surface_gravity","value":2.51,"value_text":null,"unit":"log(cm/s2)","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2013ApJ...779..102K","ref_year":2013},{"parameter":"variability_period","value":0.7146,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"RRAB","source":"simbad","reference":"2018ApJ...855...43M","ref_year":2018},{"parameter":"variability_period","value":0.709911,"value_text":null,"unit":"d","err_plus":null,"err_minus":null,"band":null,"method":"?","source":"simbad","reference":"2015A&A...579A..19A","ref_year":2015}],"orbit":null,"exoplanet":null,"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=[MDR2009] V2","fetched_at":"2026-08-26T03:14:35.642033+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=173.232583%20-0.558278&-c.rs=5","fetched_at":"2026-08-26T03:14:56.449392+00:00"}]}