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When a star "goes off the main-sequence" it generally means the star has run out of hydrogen fuel and is beginning the post-main-sequence or its end of life phase. The main sequence of a star is the time where it is no longer just a proto-star but is burning hydrogen as a primary source of fuel.
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Name an example of a main sequence?
The sun is a main sequence star
Why is Sirius not a main sequence star?
Sirius is not a single star but a binary star system consisting of a white main sequence star and a white dwarf.
Is a white dwarf considered a main sequence star?
No, a white dwarf is not considered a main sequence star. A main sequence star is a star that is still fusing hydrogen in its core. A white dwarf is the remnant of a low to medium mass star in which fusion has stopped.
What type of star is chort?
a main sequence star
What type of star is achernar?
it is a main sequence star
When do stars start to die?
When star goes out of main sequence then they starts to die.
Is a red giant star considered to be a main sequence star?
No. Red giants are not on the main sequence.
What does a main-sequence G2 star mean?
it means tgalerxy exploads hat the
What goes on in a star when its in its main sequence?
In that case, the star gets its energy from hydrogen fusion - that is, it converts hydrogen-1 to helium-4.
Does a red main sequence star have fusion?
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.
Main sequence star distance from earth?
The sun is a main sequence star, so 1 AU.
Name an example of a main sequence?
The sun is a main sequence star
What is a stabilized star?
Main-Sequence star
Why is Sirius not a main sequence star?
Sirius is not a single star but a binary star system consisting of a white main sequence star and a white dwarf.
What category does a star belong in Main sequence star white dwarf red giant neutron star?
None of those is a main sequence star.
What is the main characteristic of a sequence star?
The defining characteristic of a main sequence star burns hydrogen to helium in its core.
What is the nearest star in the main sequence is?
Most stars are on the main sequence; that includes red dwarves. Specifically, in this case, the closest known star - Proxima Centauri - is also the closest main-sequence star.
