{"id":1586975,"slug":"4u-2028-42","name":"4U 2028+42","domain":"deep-sky","class":"source","otype":"X","otype_label":"X","ra":307.75,"dec":43.0,"coo_err_mas":null,"coo_bibcode":"2003A&A...411L..59E","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":7,"simbad_oid":91151,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-09-20T19:59:17.271607+00:00","views":5,"first_seen":"2026-08-14T16:49:53.050273+00:00","updated_at":"2026-08-14T16:49:53.050273+00:00","identifiers":["1H 2018+439","4U 2028+42","INTREF 1027"],"measurements":[{"parameter":"sed_flux","value":8.17e-05,"value_text":null,"unit":"Jy","err_plus":9.5e-06,"err_minus":9.5e-06,"band":"UKIDSS:K","method":"II/316/gps6","source":"vizier","reference":"II/316/gps6","ref_year":null},{"parameter":"sed_flux","value":0.000305,"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}],"orbit":null,"exoplanet":null,"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=4U 2028+42","fetched_at":"2026-09-20T19:59:04.354924+00:00"},{"source":"vizier","url":"https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-c=307.750000%20+43.000000&-c.rs=5","fetched_at":"2026-09-20T19:59:17.269360+00:00"}]}