NGC 1128 Binary black hole system 3C 75 contained in the dumbbell shaped galaxy NGC 1128 Observation data (J2000 epoch) Right ascension 2h 57m 41.6s[1] Declination +6° 01′ 29″[1] Redshift 6940 ± 20 km/s[1] Distance 300 Mly[2] Apparent magnitude (V) 13.8[1] Characteristics Type E0[1] Apparent size (V) 0'.9 × 0'.4[1] Notable features Dumbbell-shaped galaxy Other designations PGC 11188[1]