The Hexagram, like the pentagram, was and is used in practices of the occult and is attributed to the 7 ‘old’ planets outlined in astrology.
– Hexagram, Wikipedia
Students of the Western Hermetic Tradition are no doubt familiar with the association of the six points and center of the Hexagram with the Seven Planets known to the ancients. (The word “planet” originally had a broader meaning than it is given today, and was used to refer to any celestial body observed to move in a regular cycle through the sky. According to this early usage, both the moon and the sun count as planets.)
– The Inner Hexagram, by Simon Jester