{"id":1994934,"slug":"g-57-21b","name":"G 57-21B","domain":"deep-sky","class":"star","otype":"PM*","otype_label":"HighPM*","ra":177.2215116222471,"dec":18.015704000748883,"coo_err_mas":0.0208,"coo_bibcode":"2020yCat.1350....0G","plx_mas":23.9098,"pmra":-528.723,"pmdec":35.581,"rv_kms":null,"redshift":null,"dist_pc":null,"vmag":null,"bmag":16.9,"gmag":14.283441,"jmag":11.313,"kmag":10.48,"sp_type":"dM4.0","morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":9,"simbad_oid":1863557,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":1,"first_seen":"2026-08-14T16:50:43.491428+00:00","updated_at":"2026-08-16T03:44:01.231316+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}