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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.
What else can I help you with?
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 type of star is chort?
Chort, also known as Omicron1 Tauri, is a binary star system located in the constellation Taurus. The primary star is a yellow-white F-type main-sequence star, while the companion star is a smaller K-type main-sequence star.
What one is bigger a white dwarf or a main sequence star?
Main sequence stars are bigger.
What type of star is achernar?
Achernar is a type B star, specifically a B6 V star. It is a hot, blue-white main sequence star located in the constellation Eridanus.
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.
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 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.
What is a stabilized star?
Main-Sequence star
What category does a star belong in Main sequence star white dwarf red giant neutron star?
None of those 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.
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.
The star Algol is estimated to have approximately the same luminosity as the star Aldebaran and approximately the same surface temperature as the star Rigel Algol is best classified as a?
Algol is a blue main-sequence star in the constellation Perseus
What types of stars are main sequence stars?
Any star that it fusing hydrogen into helium is classed as a main sequence star.
