first its called the main sequence star like the sun then it becomes a red giant then it becomes a red super giant and if it is huge a hyper-giant like VY Canis Majoris (largest star known) then it explodes and it becomes a planetary nebula then it becomes a white dwarf
The bigger star is typically referred to as the one with a higher mass. Size can vary, but mass is a good indicator of a star's overall size and brightness.
It could be either, depending on the characteristics of the star.
that question doesn't make sense. there are star that are one billion times bigger than our on solar system star, how ever bigger stars live a shorter life than smaller stars!
Main sequence stars are bigger.
Because it is one.
which one start with smallest to the biggest
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Yes the sun is one of the stars bigger than earth so is Sirius,Pollux and Arcturus
There's only one star that we call 'Betelgeuse', and that one is very highly luminous.
I think regular. * * * * * Only if you ignore all the points where the sides cross one another.
Migit
Many stars are bigger, but Betelgeuse is one of them, a red giant.