CBA Center for Backyard Astrophysics

TT Arietis: Gone Positive!
(The 1997 Campaign)

TT Ari figure

Lower frame, merged light curve of TT Ari during 1997 December 17/18. The various segments were supplied by Lasse, Jerry, Dave W, Paul, Gordon, Lasse again. The mean period is 0.1492(1) d, and the mean waveform is given in the upper frame. Pretty much your basic positive superhump, despite the star's well-known penchant for negative superhumps during the preceding 30 years.