NML Cygni
... that the red supergiant NML Cygni is the largest star currently known, at about 1,650 times the Sun's diameter?
... that the <a href="./Red_supergiant" id="mw0Q" rel="mw:WikiLink" title="Red supergiant">red supergiant</a> <b id="mw0g"><a href="./NML_Cygni" id="mw0w" rel="mw:WikiLink" title="NML Cygni">NML Cygni</a></b> is the <a href="./List_of_largest_known_stars" id="mw1A" rel="mw:WikiLink" title="List of largest known stars">largest star currently known</a>, at about 1,650 times the Sun's diameter?