Tags: Star.
Eta Cassiopeiae (η Cas η Cassiopeiae) is a star system in the northern circumpolar constellation of Cassiopeia. It has the traditional name Achird. Based upon parallax measurements the distance to this system is 19.42 light-years (5.95 parsecs) from Earth.In Chinese 王良 (Wáng Liáng) meaning Wang Liang refers to an asterism consisting of η Cassiopeiae β Cassiopeiae κ Cassiopeiae α Cassiopeiae and λ Cassiopeiae.
