TCP J02191736+2857158: growing superhump Moriyama-san, Stephen, Funada-san, Peter Starr and Itoh-san reported the observation. According to the data from the last three days, the object has a superhump period of ~0.048(1)d. Further observations during this phase are very important. The current magnitude is ~14mag. best regard, Kyoto University master's grade 2 Hiromasa Hoke
the object has a superhump period of ~0.048(1)d. This period of 69 min is below the period minimum. This value and the strong helium-rich spectrum, which we reported to ATel, suggest that this object is an EI Psc-type object showing a WZ Sge-type superoutburst. Such an event is very rare. Further observations are encouraged.
On 2026/07/24 20:24, Hiromasa Hoke via vsnet-alert wrote:
TCP J02191736+2857158: growing superhump
Moriyama-san, Stephen, Funada-san, Peter Starr and Itoh-san reported the observation. According to the data from the last three days, the object has a superhump period of ~0.048(1)d. Further observations during this phase are very important. The current magnitude is ~14mag.
best regard, Kyoto University master's grade 2 Hiromasa Hoke
participants (2)
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Hiromasa Hoke -
Keisuke Isogai