ZTF18acynctq = TCP J20402089+4915562 = ASASSN-25bt: new SU UMa star candidate

XOSS team via TOCP/TNS and ASAS-SN reported the 2025 outburst of this system, which is already known as ZTF18acynctq in its 2018 outburst.

Its 2018 outburst lasted for ~15 days and showed a possible rebrightening in the ATLAS data. Thus the outburst cycle is ~2300 d. 

This system is currently ~16.0 mag, and time-resolved observations may detect superhumps.

Best regards,

Yusuke