0
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.
Wiki User
∙ 13y ago
Wiki User
∙ 8y agoNo. A star becomes a red giant as it leaves the main sequence.
Add your answer:
Earn +20 pts
How do red dwarfs differ from a main sequence star?
It's the size. A dwarf star has reached the end of the road and has collapsed. It's a little old star and people don't notice it, mostly.
What is the evolution sequence of a red dwarf star?
Your red dwarfs are stars (fusion in core). Objects of .4-8 solar masses will all become stars and then go through the red giant, planetary nebula and white dwarf stages (just like the Sun), but so will red dwarfs which have .08 - .4 solar masses (it just takes them "forever").
What is used observationally to determine the age of a star cluster?
You cannot determine the age of a star based on it's luminosity or spectral class.However, you can make *assumptions*.OB and A stars are massive and will have a short lifespan in the millions of years.FG and K stars have a longer life period - in the billions of years.KMWLY and T stars are stars those that cause problems.Most stars in this class are red dwarfs, stars that are so low in mass that they have a low rate of nuclear fusion and last for tens of billions of years.In general - and I mean in general - a redder shift, should indicate an older star but you cannot use the HR- Diagram to determine this.
What is the sequence of events leading up to the white dwarf stage?
Here is an answer based on a typical star like our Sun. It's slightly simplified. If you need more detail Wikipedia's "Stellar Evolution" is useful, but a bit complicated. An easier introduction is given by NASA in the "Sources and related links" below. Just click on that link if you wish. All stars will eventually exhaust their supply of hydrogen, the main fuel of every star in the universe (and most abundant element in the universe). The main process of fusion that powers all stars converts hydrogen into the heavier element helium (see "fusion" for more details). For a star with the mass of our Sun, each second millions of tons of hydrogen (600 million) are converted to helium, slowly depleting the remaining hydrogen (our Sun started with about 11-13 billion years of hydrogen "fuel"). When the hydrogen supply runs low, the Sun will expand, reaching the "red giant" stage of its life. Eventually the core will become hot enough to fuse helium. The process of fusion will then continue with the helium, along with some remaining hydrogen. The helium will be converted to carbon, continuing to power the star. A quite complicated situation arises with hydrogen and helium "burning" at different levels in the star. Fusion stops after producing oxygen nuclei, because the Sun's temperatures will not be high enough to produce heavier elements. As the last fuel is exhausted, the star's outer layers will be expelled by the imbalance in pressure from fusion versus the gravity holding the star together. As these outer layers are expelled, the core of carbon and oxygen nuclei will be the remnant, a white dwarf star. In the beginning there will be a super hot white dwarf emitting light until it cools down and no longer emits light and becomes a black dwarf. High mass stars, after going supernova, become neutron stars or become black holes, if they're massive enough.
Who are the emperor guards in red in Star Wars?
my dog and his baby and donkey
Is a red giant a main sequence star?
No, a red giant is a star that has just left the hydrogen burning main sequence and begun the next step, burning helium. As helium undergoes fusion at a much higher temperature than hydrogen undergoes fusion, the star expands dramatically and as it expands its outer layers cool to red heat.
Is a red giant star considered to be a main sequence star?
No. Red giants are not on the main sequence.
What is the process they generates energy into the core of the main sequence star?
Hydrogen fusion to make helium. When a star runs out of hydrogen in its core to fuse, it begins collapsing, leaves the main sequence, then ignites helium fusion to make carbon, becoming a red giant.
What happens to main sequence stars when energy from fusion is no longer available?
The star will move on to its next stage of evolution, along the Red Giant branch.
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 step after main sequence in a stars life?
After the main sequence, a star becomes a red giant.
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.
What element is the main fuel for main sequence stars for red giant?
Main sequence star: hydrogen-1. Red giants: helium-4.
What element is the main fuel for red giants main sequence stars?
Main sequence star: hydrogen-1. Red giants: helium-4.
What red giants element is the main fuel for main sequence stars?
Main sequence star: hydrogen-1. Red giants: helium-4.
The energy source of stars is primarily associated with?
hydrogen fusion in the core. eventually runs out of hydrogen in the core and hydrogen fusion moves to the shell whilst the core contracts (star expands into red giant)...star leaves the main sequence.
Will the K-type Epsilon Eridani star eventually evolve into a G-type main sequence star like the Sun?
No. A star's class on the main sequence is ultimately predetermined by its mass, so a star cannot change its position on the main sequence. Epsilon Eridani is about 82% the mass of the sun, which limits it to a lower rate of fusion and thus a lower temperature and luminosity than a G-type star like the sun. Epsilon Eridani's only change in class will come when it leaves the main sequence to become a red giant.
