 However, Charles Messier did not include the Hyades in his 1781 catalog of deep sky objects.It therefore lacks a Messier number, unlike many other, more distant open clusters – e.g., M44 (Praesepe), M45 (Pleiades), and M67.In 1869, the astronomer R.A. Proctor observed that numerous stars at large distances from the Hyades share a similar motion through space.