{"id":34362,"slug":"33-polyhymnia","name":"33 Polyhymnia","domain":"solar-system","class":"asteroid","otype":null,"otype_label":"Asteroid","ra":null,"dec":null,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":0,"simbad_oid":null,"gaia_dr3":null,"jpl_spkid":20000033,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":1,"first_seen":"2026-08-14T16:44:22.692977+00:00","updated_at":"2026-08-14T17:22:10.067085+00:00","identifiers":["33","33 Polyhymnia","33 Polyhymnia (A854 UB)","Polyhymnia"],"measurements":[],"orbit":{"object_id":34362,"epoch_jd":2461200.5,"a_au":2.871,"e":0.3345,"i_deg":1.85,"om_deg":8.13,"w_deg":338.81,"ma_deg":147.61,"q_au":1.911,"ad_au":3.83,"period_d":1780.0,"moid_au":0.903,"orbit_class":"MBA","neo":false,"pha":false,"h_mag":8.46,"diameter_km":52.929,"albedo":0.24,"rot_period_h":18.608,"spec_b":"Sq","spec_t":"S","condition_code":"0","n_obs":6146,"arc_days":62165,"first_obs":"1856-01-25","last_obs":"2026-04-08","producer":"Otto Matic","source":"jpl-sbdb","updated_at":"2026-08-14T17:22:10.067085+00:00"},"exoplanet":null,"sources":[]}