|WikiProject Astronomy||(Rated Start-class, High-importance)|
The true monsters of the Universe are blue supergiant stars, like Rigel. These have surface temperatures of 20,000 – 50,000 Kelvin and can be 25 times larger than the Sun. Because they're so large, and burn so hot, they use up their fuel very quickly. A middle-sized star like our Sun might last for 12 billion years, while a blue supergiant will detonate within a few million years. The smaller stars will leave neutron stars or black holes behind, while the largest will just vaporize themselves completely.
Regulus is main sequence, not a blue giant.
Pertaining to article as it appeared on 14 September 2006, particularly the second paragraph, it defines too many newly introduced terms (to the article) in the context of other newly introduced terms. The result to the uninitiated is an inconclusive understanding of what any of the terms mean, even relative to one another. I would be eager to see this treatment discussed with a greater supporting structure of fully disclosed meanings.
I would appreciate if someone could start the article off in a more layman-friendly way since I certainly do not even havae a clue what class O-B means and it would be nice not to have to know this to start reading the article.