The Aquarian Star, more commonly known as a Unicursal hexagram, is a six-pointed star that represented the Men of Letters. The top and bottom rays of the star are larger than the other rays. In some cases, the star is enclosed by two circles, as opposed to depicting the star by itself. According to Henry Winchester, the star represented great magic and power and guarded the gates of Atlantis. The Men of Letters used this to identify themselves and their bases of operation. They also used it to mark several possessions, including their key, or even in tombstones.