ay lac.gif

AY Lac was detected in outburst by ASAS-SN on Oct 08.283 at 13.83g. Only two previous outbursts have been recorded, 1927 & 1966.   

Superhumps have been detected by Tonny Vanmunster quite late into the outburst - amplitude 0.29 and period 0.059d - suggesting AY Lac is probably a UGWZ star.

In the above light curve, unfiltered CCD observations were obtained using COAST, and filtered by AAVSOnet BSM.

AY Lac 131020.png

Truncated unfiltered CCD image of AY Lac in outburst, obtained on Oct 13.064 UT at magnitude 14.965CV.    COAST