{"id":3829646,"slug":"upk-4","name":"UPK 4","domain":"deep-sky","class":"cluster","otype":"OpC","otype_label":"OpenCluster","ra":281.3608333333333,"dec":-23.763888888888886,"coo_err_mas":null,"coo_bibcode":"2021A&A...647A..19T","plx_mas":1.245,"pmra":-2.023,"pmdec":-6.384,"rv_kms":11.138,"redshift":3.715306e-05,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":32.6,"size_min":32.6,"size_angle":0.0,"nbref":14,"simbad_oid":17741663,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":5,"first_seen":"2026-08-14T16:54:31.421245+00:00","updated_at":"2026-09-20T03:26:54.426407+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}