The position of HW Tau in Downws, Webbink and Shara seems to be not true.
The object shown in Downws, Webbink and Shara is too red for a CV as
reported by B. Sumner
Some confusions were happened in early 2000
A. Henden informed a sequence of this field:
P. Schmeer reported that HW Tau is one of the 'cataclysmic variables'
that he identified in 1999 as minor planets