Secrets of Blue Supergiant Stars
A blue Supergiant star(artist's view). Astronomers study the nature of Blue Supergiant Stars for decades. Blue Supergiants are difficult to study because they have a short lifetime as they die young. Stars temperature are determine by their colour - Blue Supergiants are hottest while Red stars are the coolest. Blue Supergiants have a surface temperature between 20,000℃ to 50,000℃. ...