Blue+Giants+4B

Blue giants are true giants. They are more massive then the sun and they burn hotter. Their mass is 10x that of the sun They burn helium. The surface temp. of 2 to 4x that of our local star. Rigel is the most famous blue giant star. They are large because they have a lot of material we big only because they arhich means they are not like the red giants because they are bloated. The more mass it has the faster it burns fuel. Because this star has alot of mass its life span as much shorter then that of the sun. The more mass the shorter life as little as 1 million years. The less mass the longer life as much as 50 billion years. When a blue star dies it can swell up many times before its final collapse. Then white dwarfs form but they end up collapsing too because the blue giiants mass is so great that the electrons dont have to ability to hold the star back from further collapse. The white dwarf would have usually been the same size as the earth, now collapses into a neutron star, which gives it a diamter of about the same size of a typical city. Then the star becomes a black hole because most of them when they die are black holes. When you observe what kind of stars become black holes most of them are from Blue Giants.

Spectral Type Color temperature (K) Example O BLUE 40,000-25,000 Zeta Puppis B BLUE 25,000-11,000 Spica Regulus Rigel A BLUE-WHITE 11,000-7,500 Vega, Daneb Sirius F WHITE 7,500-6,000 Canopus, Procyon Polaris G YELLOW-WHITE 6,000-5,000 Alpha Centauri K ORANGE 5,000-3,500 M RED 3,500-3,000