Cassiopeia is not a single star, but a constellation. It is one of the most recognizable constellations in the Northern Hemisphere, shaped like a "W" or an "M" depending on the time of year.

The constellation Cassiopeia is made up of many individual stars, each with its own characteristics. Some of the brightest stars in Cassiopeia include:

* Schedar (Alpha Cassiopeiae): A red giant star

* Caph (Beta Cassiopeiae): A yellow giant star

* Ruchbah (Gamma Cassiopeiae): A blue-white giant star

* Segin (Epsilon Cassiopeiae): A blue-white dwarf star

So, to be precise, Cassiopeia itself isn't a specific type of star, but a collection of many different types of stars.