Аннотация:MASTER-OAFA auto-detection system ( Lipunov et al., “MASTER Global Robotic Net”, Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 03h 21m 27.50s -33d 44m 40.6s on 2021-04-03.97804 UT. The OT unfiltered magnitude is 17.6m (mlim=18.7).