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The designations W Centauri and w Centauri refer to two different stars in the constellation Centaurus. [1]

7 relations: Bayer designation, Centaurus, HD 110458, Mira variable, Red giant, Star, Variable star designation.

A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.

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Centaurus is a bright constellation in the southern sky.

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HD 110458 (Bayer designation w Cen / w Centauri) is a star in the constellation Centaurus.

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Mira variables, named after the prototype star Mira, are a class of pulsating variable stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wavelengths.

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A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.

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A star is a luminous sphere of plasma held together by its own gravity.

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Variable stars are designated using a variation on the Bayer designation format of an identifying label (as described below) combined with the Latin genitive of the name of the constellation in which the star lies.

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[1] https://en.wikipedia.org/wiki/W_Centauri

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