Searching for the coordinates at Gaia i found it with the name Gaia20bky. And i agree with you, Taichi Kato, the light curve is quite similar to a SN. There is few data, but the shape is evident. Light curve: http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia20bky/ ________________________________ From: Taichi Kato tkato@kusastro.kyoto-u.ac.jp Sent: Friday, June 2, 2023 1:51 AM To: vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp; vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp Subject: [vsnet-chat 9418] ASASSN-20dj: SN

ASASSN-20dj: SN

The ATLAS light curve looks like to me an SN (relatively slow rise to maximum and faded in several months).