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Stellar Evolution
Stellar evolution is the life cycle of a star. Stars start out as clouds of gas and dust. The composition of the gas and dust will determine the stages that the star may go through.
159 Questions
What are the steps of stellar evolution in order?
You can find an overview of stelar evolution in the Wikipedia article entitled "Stellar evolution".
What causes the process of nuclear fusion to start in stars?
It is generally thought that as the gasses needed to create a star collect, the gravity that is pulling them together will compress and heat that gas so much that at some point fusion will spontaneously begin.
Why are dwarf plants are hot but dim?
I assume you mean a DWARF STAR. There are different types of dwarf stars; the white dwarfs are fairly hot - but the reason they are dim is that they have a very small surface area.
How does stardust leave a star?
You'll have to give us some idea of what you mean by stardust - this isn't an actual astronomical term!
Stars have stellar winds that broadcast atomic particles into space (giving us aurorae by the way) - is that what you mean?
Also, when stars such as the Sun evolve and turn into red giants they can become unstable (red variable stars like Mira) and can pump large amounts of material into space.
What are possible triggers to begin the collapse of an interstellar gas cloud?
A common trigger would be a nearby nova or supernova. Note that it would not need to collapse the entire nebula; just creating a spot of critical density would cause a protostar to form.
Well i really think its quite obvious. The fact that you asked this question in the first place must be an indication of your level intelligence. Obviously the stars internal temperature must rise at least 1200 Kalvin's before any sort of classifcation can be changed. The number of Kalvin's increased is a direct indicator as to how said star can be properly classified. So because of this a star's temperature must increase and exponential amount before anything should be changed.
OK, you explained the answer well, but might I say, you shouldn't be questioning anybodies intelligence! I am in AIG at my school, but hey I didn't know the answer to this! Anyway its intelligence level, not level intelligence, and your questioning their intelligence, really! Your atrociously bad spelling and grammar is also unbelievable!
yes. stars are aged like us and eventully they will blow up. But more stars are formed.
Some stars blow up, some don't. It depends on their mass. Stars having more than 3 times the mass of our sun will blow up when they die, stars having less than 3 times the mass of our sun will not blow up when they die instead they will just shrink and cool.
What is the source of energy in the sun?
Gravitationally confined thermonuclear fusion of hydrogen into helium inside a small volume at the core of the sun, where temperature is so high that the electrons and protons of the hydrogen atoms are completely separate gasses (plasma) and pressure is so high that the density of these gasses is hundreds of times that of the densest solids on earth.
