V1191 Cygni
... that the W Ursae Majoris variable star system V1191 Cygni has one of the highest known rates of mass transfer?
... that the <a href="./W_Ursae_Majoris_variable" id="mwAe4" rel="mw:WikiLink" title="W Ursae Majoris variable">W Ursae Majoris variable</a> star system <b id="mwAe8"><a href="./V1191_Cygni" id="mwAfA" rel="mw:WikiLink" title="V1191 Cygni">V1191 Cygni</a></b> has one of the highest known rates of <a href="./Mass_transfer" id="mwAfE" rel="mw:WikiLink" title="Mass transfer">mass transfer</a>?