ASASSN-26ad; new SU UMa-type dwarf nova, likely a WZ Sge star ASASSN-26ad was discovered by ASASSN on 2026-01-04.1 UT at 14.57 mag. The outburst amplitude is ~8.3 mag according to the VSX. https://vsx.aavso.org/index.php?view=detail.top&oid=10868368 Sjoerd Dufoer, Josch Hambsch, and Itoh-san have reported the time-resolved observations. Although there were some modulations from the early outburst, clear single-peaked superhumps have appeared after 2026-01-10. The mean superhump period is ~0.0618 d. Thus, ASASSN-26ad is a new SU UMa-type dwarf nova. Given its large outburst amplitude and long waiting time before the appearance of positive superhumps, ASASSN-26ad is likely a WZ Sge star. Best regards, Yusuke -- ---------------------------------------------- South African Astronomical Observatory, Postdoc fellow Yusuke TAMPO / 反保 雄介 EMAIL: tampo@kusastro.kyoto-u.ac.jp ALT. EMAIL: yusuke@saao.ac.za ----------------------------------------------