[vsnet-alert 23511] TCP J21040470+4631129: further brightening of the third rebrightening!

[Taichi Kato]

TCP J21040470+4631129: further brightening of the third rebrightening!

> According to observations on 26th by Stephen M. Brincat, Charles
> Galdies and Vihorlat Observatory team, TCPJ21040470+4631129 is now
> ~11.4 mag, brighter than the last 2 rebrightenings which was ~12 mag
> at peak.

   And it is now developing superhumps!   This is probably
the first case in which a new superoutburst is triggered
during a series of rebrightenings!
Measurement of superhump periods in this state will be
extremely important.