Аннотация:MASTER-OAFA (Argentina) auto-detection system ( Lipunov et al., “MASTER Global Robotic Net”, Advances in Astronomy, 2010, 30L ) discovered OT source AT2021abqn at (RA, Dec) = 00h 54m 44.54s -59d 19m 17.3s on 2021-10-16.19806 UT. Galactic latitude b=-57.8d The OT magnitude in ’Clear’ filter is 14.8m (mlim = 18.4).