Conjugacy and the Class Equation · Easy problem

$D_6$ is the group of symmetries of a regular hexagon (order $12$), generated by the $60^\circ$ rotation $r$ (so $r^6=e$) and a reflection $s$ satisfying $srs^{-1}=r^{-1}$. How many elements of $D_6$ are conjugate to $r$, counting $r$ itself?