(fwd) ASASSN-18vi/ZTF18abtudfk From: Jan van Roestel <jcjvanroestel@gmail.com> Subject: [vsnet-outburst 28357] ASASSN-18vi/ZTF18abtudfk Date: Sat, 12 Feb 2022 19:31:33 -0800 On the morning of Feb 12, we obtained a lightcurve of=20 ASASSN-18vi/ZTF18abtudfk with KPED (https://kped.org/).=C2=A0 We used g-b= and=20 and a 10s cadence with a total duration of 1hr. The lightcurve shows a=20 clear periodic signal with a period of 16.3+/-0.2 minutes and an=20 amplitude of 2.2+/-0.7%. This strongly suggests this object is an AM CVn=20 star; likely with an orbital period of 33 minutes. Dr. Jan van Roestel, ZTF-collaboration