Two signs for
ammonium salts used during the seventeenth century. It is also one of
the old alchemical signs for the planet Venus.
More than 3,000 years earlier star signs with eight points were established in the Euphrates-Tigris region as symbols for the Venus goddess Ishtar.
Turn to in Group 29 for a description of the relation between the number 8, graphically represented by the arms of these signs, and the planet Venus.
See also in Group 26.