{"id":1654500,"slug":"sn-1991y","name":"SN 1991Y","domain":"deep-sky","class":"transient","otype":"SN*","otype_label":"Supernova","ra":258.6375,"dec":57.31333333333333,"coo_err_mas":150000.0,"coo_bibcode":"1991IAUC.5259....1M","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":null,"vmag":19.0,"bmag":19.0,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":5,"simbad_oid":353325,"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":[]}