{"id":3829698,"slug":"upk-640","name":"UPK 640","domain":"deep-sky","class":"cluster","otype":"OpC","otype_label":"OpenCluster","ra":250.25999999999993,"dec":-39.49388888888888,"coo_err_mas":null,"coo_bibcode":"2021A&A...647A..19T","plx_mas":5.684,"pmra":-11.845,"pmdec":-21.275,"rv_kms":1.63,"redshift":5.4371094e-06,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":163.3,"size_min":163.3,"size_angle":0.0,"nbref":31,"simbad_oid":17745942,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":2,"first_seen":"2026-08-14T16:54:31.421245+00:00","updated_at":"2026-08-14T16:54:31.421245+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}