Nishimura-san has just reported that V3101 Cyg (=TCP J21040470+4631129) is in outburst. object YYYYMMDD(UT) mag code CYGV3101 20201225.38127 108c Nmh.VSOLJ Observer: Hideo Nishimura (Shizuoka, Japan) Instruments: f.l.=200mm(F=3.2) + Canon EOS 6D