(from AAVSO NEWS FLASH No. 23)
TT BOOTIS The dwarf nova type (SU UMa subclass) cataclysmic variable TT Boo is in outburst as indicated by the following observations: AAVSO Observer UT Mag. Initials MAY 18.2535 <13.5 HSG MAY 18.997 <13.9 VMT MAY 19.2340 <13.9 BTH MAY 19.9875 14.1 BMM MAY 20.2382 13.4 BTH MAY 20.2708 13.3 GRI