{"id":1775131,"slug":"m-38","name":"M 38","domain":"deep-sky","class":"cluster","otype":"OpC","otype_label":"OpenCluster","ra":82.16708333333332,"dec":35.823888888888895,"coo_err_mas":null,"coo_bibcode":"2021A&A...647A..19T","plx_mas":0.874,"pmra":1.58,"pmdec":-4.424,"rv_kms":-1.261,"redshift":-4.2062343e-06,"dist_pc":null,"vmag":6.4,"bmag":6.69,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":19.6,"size_min":19.6,"size_angle":0.0,"nbref":190,"simbad_oid":792827,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-09-11T11:38:17.021655+00:00","views":6,"first_seen":"2026-08-14T16:50:15.847052+00:00","updated_at":"2026-08-14T16:50:15.847052+00:00","identifiers":["C 0525+358","[KC2019] Theia 874","[KPR2004b] 71","[KPS2012] MWSC 0557","M 38","NGC 1912","OCl 433.0"],"measurements":[{"parameter":"distance","value":1.04,"value_text":null,"unit":"kpc","err_plus":null,"err_minus":null,"band":null,"method":"paral","source":"simbad","reference":"2022MNRAS.509..421N","ref_year":2022},{"parameter":"distance","value":1104.0,"value_text":null,"unit":"pc","err_plus":null,"err_minus":null,"band":null,"method":"paral","source":"simbad","reference":"2021A&A...651A.104P","ref_year":2021},{"parameter":"distance","value":1.158,"value_text":null,"unit":"kpc","err_plus":0.094,"err_minus":-0.094,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.503.3279S","ref_year":2021},{"parameter":"distance","value":1068.0,"value_text":null,"unit":"pc","err_plus":26.0,"err_minus":-26.0,"band":null,"method":"paral","source":"simbad","reference":"2021MNRAS.504..356D","ref_year":2021},{"parameter":"distance","value":1144.0,"value_text":null,"unit":"pc","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2018MNRAS.473..849D","ref_year":2018},{"parameter":"distance","value":1145.0,"value_text":null,"unit":"pc","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2017AstBu..72..257L","ref_year":2017},{"parameter":"distance","value":1066.0,"value_text":null,"unit":"pc","err_plus":null,"err_minus":null,"band":null,"method":"ST-L","source":"simbad","reference":"2005A&A...438.1163K","ref_year":2005},{"parameter":"magnitude","value":6.4,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"V","method":null,"source":"simbad","reference":null,"ref_year":null},{"parameter":"magnitude","value":6.69,"value_text":null,"unit":"mag","err_plus":null,"err_minus":null,"band":"B","method":null,"source":"simbad","reference":null,"ref_year":null},{"parameter":"metallicity","value":-0.14,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2022MNRAS.509..421N","ref_year":2022},{"parameter":"metallicity","value":-0.116,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2022A&A...668A...4F","ref_year":2022},{"parameter":"metallicity","value":-0.129,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.503.3279S","ref_year":2021},{"parameter":"metallicity","value":0.014,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.504..356D","ref_year":2021},{"parameter":"metallicity","value":-0.183,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2020A&A...640A.127Z","ref_year":2020},{"parameter":"metallicity","value":-0.14,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2020AJ....159..199D","ref_year":2020},{"parameter":"metallicity","value":-0.07,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2019A&A...623A..80C","ref_year":2019},{"parameter":"metallicity","value":-0.1,"value_text":null,"unit":"dex","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2016A&A...585A.150N","ref_year":2016},{"parameter":"parallax","value":0.91,"value_text":null,"unit":"mas","err_plus":0.037,"err_minus":0.037,"band":null,"method":null,"source":"simbad","reference":"2023A&A...674A..37G","ref_year":2023},{"parameter":"parallax","value":0.881,"value_text":null,"unit":"mas","err_plus":0.046,"err_minus":0.046,"band":null,"method":null,"source":"simbad","reference":"2022ApJS..262....7H","ref_year":2022},{"parameter":"parallax","value":0.889,"value_text":null,"unit":"mas","err_plus":0.044,"err_minus":0.044,"band":null,"method":null,"source":"simbad","reference":"2022A&A...659A..59T","ref_year":2022},{"parameter":"parallax","value":0.87,"value_text":null,"unit":"mas","err_plus":0.073,"err_minus":0.073,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.504..356D","ref_year":2021},{"parameter":"parallax","value":0.885,"value_text":null,"unit":"mas","err_plus":0.029,"err_minus":0.029,"band":null,"method":null,"source":"simbad","reference":"2021A&A...651A.104P","ref_year":2021},{"parameter":"parallax","value":0.868,"value_text":null,"unit":"mas","err_plus":0.065,"err_minus":0.065,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.503.3279S","ref_year":2021},{"parameter":"parallax","value":0.874,"value_text":null,"unit":"mas","err_plus":0.003,"err_minus":0.003,"band":null,"method":null,"source":"simbad","reference":"2020A&A...633A..99C","ref_year":2020},{"parameter":"parallax","value":0.874,"value_text":null,"unit":"mas","err_plus":0.064,"err_minus":0.064,"band":null,"method":null,"source":"simbad","reference":"2020A&A...640A...1C","ref_year":2020},{"parameter":"parallax","value":1.29802,"value_text":null,"unit":"mas","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"simbad","reference":"2019AJ....158..122K","ref_year":2019},{"parameter":"parallax","value":0.874,"value_text":null,"unit":"mas","err_plus":0.064,"err_minus":0.064,"band":null,"method":null,"source":"simbad","reference":"2018A&A...618A..93C","ref_year":2018},{"parameter":"pm_dec","value":-4.427,"value_text":null,"unit":"mas/yr","err_plus":0.125,"err_minus":0.125,"band":null,"method":null,"source":"simbad","reference":"2023A&A...674A..37G","ref_year":2023},{"parameter":"pm_dec","value":-4.427,"value_text":null,"unit":"mas/yr","err_plus":0.079,"err_minus":0.079,"band":null,"method":null,"source":"simbad","reference":"2022A&A...659A..59T","ref_year":2022},{"parameter":"pm_dec","value":-4.425,"value_text":null,"unit":"mas/yr","err_plus":0.15,"err_minus":0.15,"band":null,"method":null,"source":"simbad","reference":"2022ApJS..262....7H","ref_year":2022},{"parameter":"pm_dec","value":-4.425,"value_text":null,"unit":"mas/yr","err_plus":0.176,"err_minus":0.176,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.504..356D","ref_year":2021},{"parameter":"pm_dec","value":-4.423,"value_text":null,"unit":"mas/yr","err_plus":0.157,"err_minus":0.157,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.503.3279S","ref_year":2021},{"parameter":"pm_dec","value":-4.453,"value_text":null,"unit":"mas/yr","err_plus":0.138,"err_minus":0.138,"band":null,"method":null,"source":"simbad","reference":"2021A&A...651A.104P","ref_year":2021},{"parameter":"pm_dec","value":-4.424,"value_text":null,"unit":"mas/yr","err_plus":0.008,"err_minus":0.008,"band":null,"method":"ICRS","source":"simbad","reference":"2020A&A...633A..99C","ref_year":2020},{"parameter":"pm_dec","value":-4.424,"value_text":null,"unit":"mas/yr","err_plus":0.156,"err_minus":0.156,"band":null,"method":"ICRS","source":"simbad","reference":"2020A&A...640A...1C","ref_year":2020},{"parameter":"pm_dec","value":-4.424,"value_text":null,"unit":"mas/yr","err_plus":0.156,"err_minus":0.156,"band":null,"method":"ICRS","source":"simbad","reference":"2018A&A...618A..93C","ref_year":2018},{"parameter":"pm_dec","value":-1.817,"value_text":null,"unit":"mas/yr","err_plus":0.053,"err_minus":0.053,"band":null,"method":"ICRS","source":"simbad","reference":"2017AstBu..72..257L","ref_year":2017},{"parameter":"pm_dec","value":-4.14,"value_text":null,"unit":"mas/yr","err_plus":1.54,"err_minus":1.54,"band":null,"method":"ICRS","source":"simbad","reference":"2014A&A...564A..79D","ref_year":2014},{"parameter":"pm_ra","value":1.548,"value_text":null,"unit":"mas/yr","err_plus":0.124,"err_minus":0.124,"band":null,"method":null,"source":"simbad","reference":"2023A&A...674A..37G","ref_year":2023},{"parameter":"pm_ra","value":1.542,"value_text":null,"unit":"mas/yr","err_plus":0.16,"err_minus":0.16,"band":null,"method":null,"source":"simbad","reference":"2022ApJS..262....7H","ref_year":2022},{"parameter":"pm_ra","value":1.549,"value_text":null,"unit":"mas/yr","err_plus":0.078,"err_minus":0.078,"band":null,"method":null,"source":"simbad","reference":"2022A&A...659A..59T","ref_year":2022},{"parameter":"pm_ra","value":1.521,"value_text":null,"unit":"mas/yr","err_plus":0.118,"err_minus":0.118,"band":null,"method":null,"source":"simbad","reference":"2021A&A...651A.104P","ref_year":2021},{"parameter":"pm_ra","value":1.592,"value_text":null,"unit":"mas/yr","err_plus":0.199,"err_minus":0.199,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.504..356D","ref_year":2021},{"parameter":"pm_ra","value":1.589,"value_text":null,"unit":"mas/yr","err_plus":0.179,"err_minus":0.179,"band":null,"method":null,"source":"simbad","reference":"2021MNRAS.503.3279S","ref_year":2021},{"parameter":"pm_ra","value":1.58,"value_text":null,"unit":"mas/yr","err_plus":0.009,"err_minus":0.009,"band":null,"method":"ICRS","source":"simbad","reference":"2020A&A...633A..99C","ref_year":2020},{"parameter":"pm_ra","value":1.58,"value_text":null,"unit":"mas/yr","err_plus":0.175,"err_minus":0.175,"band":null,"method":"ICRS","source":"simbad","reference":"2020A&A...640A...1C","ref_year":2020},{"parameter":"pm_ra","value":1.58,"value_text":null,"unit":"mas/yr","err_plus":0.175,"err_minus":0.175,"band":null,"method":"ICRS","source":"simbad","reference":"2018A&A...618A..93C","ref_year":2018},{"parameter":"pm_ra","value":0.129,"value_text":null,"unit":"mas/yr","err_plus":0.05,"err_minus":0.05,"band":null,"method":"ICRS","source":"simbad","reference":"2017AstBu..72..257L","ref_year":2017},{"parameter":"pm_ra","value":-0.52,"value_text":null,"unit":"mas/yr","err_plus":1.44,"err_minus":1.44,"band":null,"method":"ICRS","source":"simbad","reference":"2014A&A...564A..79D","ref_year":2014},{"parameter":"radial_velocity","value":-1.018,"value_text":null,"unit":"km/s","err_plus":0.511,"err_minus":0.511,"band":null,"method":"v","source":"simbad","reference":"2023A&A...674A..37G","ref_year":2023},{"parameter":"radial_velocity","value":-5.95064,"value_text":null,"unit":"km/s","err_plus":1.43375,"err_minus":1.43375,"band":null,"method":"v","source":"simbad","reference":"2022A&A...668A...4F","ref_year":2022},{"parameter":"radial_velocity","value":-1.261,"value_text":null,"unit":"km/s","err_plus":0.392,"err_minus":0.392,"band":null,"method":"v","source":"simbad","reference":"2021MNRAS.504..356D","ref_year":2021},{"parameter":"radial_velocity","value":-0.26,"value_text":null,"unit":"km/s","err_plus":0.59,"err_minus":0.59,"band":null,"method":"v","source":"simbad","reference":"2021A&A...647A..19T","ref_year":2021},{"parameter":"radial_velocity","value":-0.7,"value_text":null,"unit":"km/s","err_plus":0.4,"err_minus":0.4,"band":null,"method":"v","source":"simbad","reference":"2020AJ....159..199D","ref_year":2020},{"parameter":"radial_velocity","value":-0.65,"value_text":null,"unit":"km/s","err_plus":0.5,"err_minus":0.5,"band":null,"method":"V","source":"simbad","reference":"2019A&A...623A..80C","ref_year":2019},{"parameter":"radial_velocity","value":-1.49,"value_text":null,"unit":"km/s","err_plus":2.06,"err_minus":2.06,"band":null,"method":"v","source":"simbad","reference":"2018A&A...619A.155S","ref_year":2018},{"parameter":"radial_velocity","value":1.0,"value_text":null,"unit":"km/s","err_plus":0.58,"err_minus":0.58,"band":null,"method":"v","source":"simbad","reference":"2017AstBu..72..257L","ref_year":2017},{"parameter":"radial_velocity","value":1.0,"value_text":null,"unit":"km/s","err_plus":0.6,"err_minus":0.6,"band":null,"method":"v","source":"simbad","reference":"2017A&A...600A.106C","ref_year":2017},{"parameter":"sed_flux","value":8.44e-05,"value_text":null,"unit":"Jy","err_plus":8.5e-06,"err_minus":8.5e-06,"band":"UKIDSS:K","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null},{"parameter":"sed_flux","value":9.45e-05,"value_text":null,"unit":"Jy","err_plus":7e-06,"err_minus":7e-06,"band":"UKIDSS:H","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null},{"parameter":"sed_flux","value":8.23e-05,"value_text":null,"unit":"Jy","err_plus":4.6e-06,"err_minus":4.6e-06,"band":"UKIDSS:J","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null}],"orbit":null,"exoplanet":null,"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=M 38","fetched_at":"2026-09-11T11:38:08.893118+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=82.167083%20+35.823889&-c.rs=5","fetched_at":"2026-09-11T11:38:17.020226+00:00"}]}