Comparison of projected rotational velocities v sin i from Hale, Simbad (a collection of published values), and SONG spectra (this work). Yellow squares indicate stars with bright, nearby companions. Red squares indicate stars identified in SONG spectra as double-lined. For visual clarity HD 113139 at v sin i = 92 km s⁻¹ is not shown. HD 64096 does not have v sin i measurements from Simbad or SONG.