TCP J06093784+3046519: fading and rebrightening
The behavior suggests an AM CVn star. Although time-resolved photometry has been reported, I could not find a convincing superhump period (rather low S/N and variations did not agree well between different observers).
YYYYMMDD(UT) mag observer 20230413.4442 14.02C (Masayuki Moriyama) 20230413.4455 13.68B (Masayuki Moriyama) 20230413.4466 13.93V (Masayuki Moriyama) 20230413.4477 13.66Rc (Masayuki Moriyama) 20230413.4488 13.54Ic (Masayuki Moriyama) 20230413.4522 13.962B (Yasuo Sano) 20230413.4528 13.864V (Yasuo Sano) 20230413.4562 14.229Rc (Yasuo Sano) 20230413.4577 14.025C (Yasuo Sano) 20230414.4476 14.097B (Yasuo Sano) 20230414.4496 14.068V (Yasuo Sano) 20230414.4516 14.426Rc (Yasuo Sano) 20230414.4536 14.269C (Yasuo Sano) 20230417.5439 14.70C (Masayuki Moriyama) 20230422.435 17.46C (Hiroshi Itoh) 20230426.5370 <161C (Masayuki Moriyama) 20230427.5266 15.40C (Masayuki Moriyama)