A star falls of the main sequence when it has exhausted it's supply of hydrogen.
Main Sequence
main sequence
Stars spend about 90% of their fusion lifetimes on the main sequence.
Our Sun is in the hydrogen fusion cycle of an average, mid-size, main sequence star. I have no idea what state YOUR Sun happens to be in.
The star will move on to its next stage of evolution, along the Red Giant branch.
A protostar generates energy by friction whereas a main sequence star generates energy by fusion.
A protostar generates energy by friction whereas a main sequence star generates energy by fusion.
Main Sequence
main sequence
hydrogen fusion
Stars spend about 90% of their fusion lifetimes on the main sequence.
A red main sequence star would be a red dwarf or a branch red giant. To be on the main sequence, you have to have hydrogen nuclear fusion.
Our Sun is in the hydrogen fusion cycle of an average, mid-size, main sequence star. I have no idea what state YOUR Sun happens to be in.
its to the right of the middle of the main sequence.
Our Sun is in the hydrogen fusion cycle of an average, mid-size, main sequence star. I have no idea what state YOUR Sun happens to be in.
The star will move on to its next stage of evolution, along the Red Giant branch.
main sequence