V434 Gem fading (VY Scl star, SDSS J074813.54+290509.2) http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21bcx/ Gaia21bcx AT2021dzl 2021-02-26 18:49:27 117.05639 29.08586 20.63 18.61 0.27 unknown 2021-03-01 15:16:55 ~1.5 mag decline in known VY Scl-type CV V434 Gem