{"id":2052068,"slug":"vir-b-cluster","name":"Vir B Cluster","domain":"deep-sky","class":"galaxy-group","otype":"GrG","otype_label":"GroupG","ra":188.41375,"dec":10.182500000000001,"coo_err_mas":null,"coo_bibcode":"1993A&AS..100...47G","plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":851.0,"redshift":0.0028426708,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":192.0,"size_min":192.0,"size_angle":0.0,"nbref":146,"simbad_oid":1937907,"gaia_dr3":null,"jpl_spkid":null,"ned_name":"MESSIER 049 GROUP","exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-10-16T16:08:00.725237+00:00","views":27,"first_seen":"2026-08-14T16:50:48.069180+00:00","updated_at":"2026-09-06T03:30:06.079676+00:00","identifiers":["BTS87 Cluster B","Cluster B in Virgo Cluster","LGG 292","M 49 Group","NBGG 11-01","NGC 4472 Group","NOGG H 619","NOGG P1 638","NOGG P2 649","Vir B Cluster","Virgo B Cluster","Virgo B Group","Virgo Cluster B","Virgo I Group"],"measurements":[{"parameter":"radial_velocity","value":0.003115,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"z","source":"simbad","reference":"2000ApJ...543..178G","ref_year":2000},{"parameter":"radial_velocity","value":851.0,"value_text":null,"unit":"km/s","err_plus":null,"err_minus":null,"band":null,"method":"v","source":"simbad","reference":"1993A&AS..100...47G","ref_year":1993},{"parameter":"redshift","value":0.00439999998,"value_text":null,"unit":null,"err_plus":null,"err_minus":null,"band":null,"method":null,"source":"ned","reference":"2000MNRAS.315..356H","ref_year":2000}],"orbit":null,"exoplanet":null,"sources":[{"source":"ned","url":"https://ned.ipac.caltech.edu/byname?objname=MESSIER 049 GROUP","fetched_at":"2026-10-16T16:07:45.837331+00:00"},{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=Vir B Cluster","fetched_at":"2026-10-16T16:07:44.519596+00:00"}]}