Y. Sato reported a rebrightening of TCP J21040470+4631129. Visual magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code TCPJ21040470+4631129 20190915.520 123 Syi.VSOLJ Observer: Yoshiyasu Sato (Niigata, Japan) Instruments: 23.5cmSCT