Cassiopeia is a northern constellation which Greek mythology considered to represent a vain queen who boasted about her unrivaled beauty.It is one of the 88 modern constellations,and was also one of the 48 listed by Ptolemy.
The constellation is in the rough shape of the letter "W."
Gamma Cassiopeiae (the center point of the "W") is also known as Navi,in honor of Apollo One commander Gus Grissom.This was originally a practical joke by Grissom,who added three names to the NASA star charts,in honor of himself and his crewmates.Grissom's middle name was Ivan,which reverses to Navi.
