CRTSJ105550.1+095621 long bright outburst
Probably SS Cyg, but might be worth visiting for time-resolved photometry (could be a borderline SS Cyg/SU UMa).
YYYYMMDD(UT) mag observer 20230414.1158 17.824c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230414.1190 17.993c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230414.1253 18.302c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230414.1351 18.270c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.6262 <152c (Yutaka Maeda) 20230415.8710 17.045o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.8744 17.140o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.8795 17.066o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230415.8933 17.041o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230416.5474 144cG (Yutaka Maeda) 20230416.5474 144cG (Yutaka Maeda) 20230416.5588 143c (Tadashi Kojima) 20230417.1113 14.225c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1145 14.184c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1218 14.239c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230417.1338 14.252c (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.8403 14.352o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.8408 14.399o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230418.8649 14.294o (ATLAS Forced Photometry (Tonry+2018, PASP 130, 064505)) 20230421.5835 141cG (Yutaka Maeda) 20230421.5835 141cG (Yutaka Maeda) 20230422.5617 141cG (Yutaka Maeda)