Z Tau

I think that the current observers of Z Tau, visual and CCD, must read this article:

http://www.aavso.org/files/webpublications/ejaavso/v37n2/101.pdf

It's clear that they all are estimating the close companion of Z Tau.

See current lightcurve:

http://www.aavso.org/lcg/plot?auid=000-BBK-328&starname=Z%20TAU&lastdays=700&start=&stop=2456184.222967685&obscode=&obscode_symbol=2&obstotals=yes&calendar=calendar&forcetics=&grid=on&visual=on&uband=on&bband=on&v=on&pointsize=1&width=800&height=450&mag1=&mag2=&mean=&vmean=

regards, Hubert