AA Vir seems to be a 14th mag. dwarf nova
AA Vir was classified as SR: in the GCVS.
Kiyoshi Kasai called the attention to this star and after checking its light curve it turns out that it has usual faint state around V= 14.8 with very frequent brightenings to V= 13.8.
The raw light curve looks like that of an RRAB star but there is no period in this variability.
It has a J-K= 0.41 so it is not a red variablebut a likely CV.
So here you have another bright CV although it looks like its behaviour shows no surprises excepting the small amplitude.