{"id":1757938,"slug":"hd-257921","name":"HD 257921","domain":"deep-sky","class":"star","otype":"*","otype_label":"Star","ra":97.04364943294,"dec":4.25067501022,"coo_err_mas":0.0507,"coo_bibcode":"2020yCat.1350....0G","plx_mas":1.2897,"pmra":6.327,"pmdec":13.606,"rv_kms":69.3503,"redshift":0.00023135448,"dist_pc":null,"vmag":11.3,"bmag":11.2,"gmag":10.994722,"jmag":10.818,"kmag":10.784,"sp_type":"B9V","morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":8,"simbad_oid":891255,"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":"2026-08-14T16:50:15.847052+00:00","updated_at":"2026-08-14T16:50:15.847052+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}