{"id":1653492,"slug":"rx-j1721-9-5749","name":"RX J1721.9+5749","domain":"deep-sky","class":"star","otype":"BY*","otype_label":"BYDraV*","ra":260.49295006044,"dec":57.82281379823,"coo_err_mas":0.0093,"coo_bibcode":"2020yCat.1350....0G","plx_mas":2.3142,"pmra":1.299,"pmdec":26.39,"rv_kms":-20.7861,"redshift":-6.9332564e-05,"dist_pc":null,"vmag":11.12,"bmag":11.73,"gmag":10.650983,"jmag":8.984,"kmag":8.305,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":11,"simbad_oid":353304,"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":"2026-08-14T16:49:54.419452+00:00","updated_at":"2026-08-14T16:49:54.419452+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}