2. A sun and a star different between science
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Our Sun is an average sized star: there are smaller stars and larger stars, even up to 100 times larger. ... Our Sun is a bright, hot ball of hydrogen and helium at the center of our solar system. It is 864,000 miles (1,392,000 km) in diameter, which makes it 109 times wider than Earth.
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That depends on which star you are talking about.
The Sun is a main sequence star about half way through its life.
Stars come in many sizes and forms.
Generally the bigger they are the faster they burn up their hydrogen fuel and the sooner they explode as supernovae.
The biggest and fastest burning are the Giants and Super Giants.
The longest lived stars are the small Red Dwarf stars.
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