[vsnet-campaign-dn 17097] V1251 Cyg outburst (first since 2008)

V1251 Cyg outburst (first since 2008)

This is obviously an alert matter.

YYYYMMDD(UT) mag observer 20230314.8506 <166C (Masayuki Moriyama) 20230318.8577 <155C (Masayuki Moriyama) 20230319.8561 <162C (Masayuki Moriyama) 20230327.8551 <159C (Masayuki Moriyama) 20230328.7938 14.29C (Masayuki Moriyama)

Last superoutburst in 2008 and earlier ones in 1994 and 1997. Considering a supercycle of 11 years, the next superoutburst is overdue. The current outburst was detected early and time-resolved photometry is very desirable. This object is a long-Porb WZ Sge star and early superhumps were visible in the earliest state of a superoutburst.