This could be a ugwz star, just like asassn-21qg probably is ...

;-)

Berto Monard / KKO

On Tue, Aug 31, 2021 at 5:20 AM Taichi Kato tkato@kusastro.kyoto-u.ac.jp wrote:

Gaia21dzx

Most likely a large-amplitude dwarf nova.

http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21dzx/ Gaia21dzx AT2021xgr 2021-08-26 21:58:43 286.00866 -35.39330 15.00 unknown 2021-08-30 23:17:11 apparently hostless transient

190402.108 -352336.26 (2000.0) GALEX_DR5_6383934048320887191 NUV=20.335(0.149) FUV=19.657(0.107)