The 1 we saw was a pentacle in a inverted position which represents the devil. The pentacle in a ascendant position signifies God, it is equally worship as the cross is in Christianity and the six-pointed star, the Star of David(the 1 which Jon mention), in Judaism.
The star of David aka shield of David, its made up to 2 triangles 1 pointing up and 1 pointing down. The 6 sides symbolies God's control over the land, North, South, East, West, Up and Down. Jewish communities chose the Star of David to represent themselves, comparable to the cross used by most Christians. A yellow-colored star was used by the Nazis, during the Holocaust, as a method of identifying Jews, as it was seen as the "Jewish Star".
The Pentacle is a five-pointed star enclosed in a circle, with one point up while standing on two points(ascendant position). They are usually use as amulets, pentacles are used for healing and protection from unwanted and evil demons or spirits. The first amulet assuming holy signs was known as “The seven Seals”. In the Judeo-Christian tradition the Seals signified the secret names of God. The pentacle, chief among them, was inscribed on King Solomon's magic ring. Some think this is why the pentacle has been mistakenly called Solomon's Seal.
The Pentacle in a descendant position represents the devil. Eliphas Levi erroneously inverted the pentacle inscribing within it the head of the goat with horns. He described it as the goat of lust battering the Heavens with its horns. The 5 points represent Spirit, Earth, Air, Water and Fire. The 5 pointed star can also be found in Leonardo da Vinci's drawing. It is also used to summon spirits.
