Red Giants:)
A Red Giant or a Red Super Giant if it is very large.
When a star is in the Hydrogen burning phase it said to be a Main Sequence star.
When its original source of fuel has run out for instance our sun runs on hydrogen, after the depletion of the original fuel is gone the suns core condenses creating helium were the star expands to great measures were it gets to a size were its limited supply of helium runs out either collapsing into a black hole or a dwarf star
hydrogen
For most of a star's life, the main fuel is protium (hydrogen-1), which is fused into helium-4.
A Red Giant or a Red Super Giant if it is very large.
No. That is when stars run out of hydrogen. They then have helium for fuel.
hydrogen
The rest of the star expands.
When a star burns up all of its hydrogen,it becomes red in color.As hydrogen is the fuel for star and it will burst after it.
A star that expands is running low on fuel, and is entering its end-of-life sequence. Its not due to fusion - all stars use fusion.
Hydrogen
When a star burns up all of its hydrogen,it becomes red in color.As hydrogen is the fuel for star and it will burst after it.
it depends on what type of star it is bigger stars run out of fuel hydrogen faster then smaller stars
A star that uses hydrogen as fuel is a main sequencestar.
hydrogen
Hydrogen