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Cassiopeia (Cassiopeia)

Month Best Visible


Hemisphere Visible


Cassiopeia has a distinctive 'W' shape formed by five bright stars. Cassopeia is also opposite the Big Dipper. Cassiopeia contains two stars visible that rank among the most luminous in the galaxy: ρ Cas and V509 Cas, both of the extremely rare class of yellow hypergiants. The star η Cas is a nearby binary star with a yellow Sun-like dwarf and an orange dwarf star.

In Greek mythology Cassiopeia was considered to represent the vain 'Queen Cassiopeia', who boasted about her unrivalled beauty.

Neighbouring Constellations

Cepheus (Cepheus)

Perseus (Perseus)

Andromeda (Andromeda)

Camelopardalis (Giraffe)

Picture of Cassiopeia