What is "blue giant"

n. (context star English) a very hot and very luminous star that emits visible light in the blue portion of the spectrum

In astronomy, a blue giant is a hot star with a luminosity class of III ( giant) or II ( bright giant). In the standard Hertzsprung–Russell diagram, these stars lie above and to the right of the main sequence.

The term applies to a variety of stars in different phases of development, all evolved stars that have moved from the main sequence but have little else in common, so blue giant simply refers to stars in a particular region of the HR diagram rather than a specific type of star. They are much rarer than red giants, because they only develop from more massive and less common stars, and because they have short lives in the blue giant stage.

The name blue giant is often misapplied to other high-mass luminous stars, such as main-sequence stars, simply because they are large and hot.

A blue giant is a hot star with a luminosity class of III (giant) or II (bright giant).

Blue giant may also refer to:

• Blue Giant (band), a band from Portland, Oregon
• Blue Giant Equipment Corporation, a loading dock solutions provider

Blue Giant is an American rock band from Portland, Oregon. An eclectic mix of country, indie rock, and psychedelic styles, Blue Giant have been called a Portland supergroup. The band was originally composed of the songwriters and musicians from Viva Voce, Kevin Robinson and Anita Robinson, Chris Funk of The Decemberists, Evan Railton of Swords, and Seth Lorinczi of The Golden Bears, Circus Lupus & The Quails. Musically, Blue Giant could be characterized as rural psychedelic rock, with one music critic calling them a perfect country rock band.