Аннотация:AT2020ray MASTER-IAC auto-detection system ( Lipunov et al., “MASTER Global Robotic Net”, Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 22h 45m 24.92s +21d 17m 42.0s on 2020-08-10.10981 UT. The OT unfiltered magnitude is 17.0m (mlim=18.1).