what are the different types of stars and their characteristics?
['Yellow Dwarf Stars. Lifetime: 4 - 17 billion years. ... ', 'Orange Dwarf Stars. Lifetime: 17 - 73 billion years. ... ', 'Red Dwarf Stars. Lifetime: 73 - 5500 billion years. ... ', 'Brown Dwarfs. Lifetime: unknown (long) ... ', 'Blue Giant Stars. Lifetime: 3 - 4,000 million years. ... ', 'Red Giant Stars. ... ', 'Red Supergiant Stars. ... ', 'White Dwarfs.']