{"id":1930194,"slug":"mrk-550","name":"Mrk 550","domain":"deep-sky","class":"galaxy","otype":"G","otype_label":"Galaxy","ra":6.75511359654,"dec":1.45957668235,"coo_err_mas":0.4687,"coo_bibcode":"2020yCat.1350....0G","plx_mas":1.3674,"pmra":-0.364,"pmdec":-0.423,"rv_kms":12614.163,"redshift":0.043,"dist_pc":null,"vmag":null,"bmag":16.0,"gmag":18.339537,"jmag":12.493,"kmag":11.745,"sp_type":null,"morph_type":null,"size_maj":0.90251,"size_min":0.581036,"size_angle":27.0,"nbref":9,"simbad_oid":1388813,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":4,"first_seen":"2026-08-14T16:50:33.190276+00:00","updated_at":"2026-08-14T16:50:33.190276+00:00","identifiers":[],"measurements":[],"orbit":null,"exoplanet":null,"sources":[]}