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A protostar is a massive object that forms from the contraction of gas from a giant molecular cloud. This protostellar phase is the early stage of star formation. For a protostar with the mass of the Sun it will last about 100,000 years. It starts with a core of increased density in a molecular cloud and ends with the formation of a T Tauri star, which then develops into a main sequence star. This is heralded by the T Tauri wind, a type of super solar wind that marks the change from the star accreting mass into radiating energy. A T Tauri star is similar to those of main sequence stars of the same mass, but they're significantly more luminous because their radii are larger. See related links for more information.
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∙ 6y ago
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∙ 14y agowe scientist really have no idea how it get its power but we are getting there....
--Answer--
A protostar is a large mass of gas and dust that is collapsing under gravity. It is an early stage of stellar formation. It is also a very short stage. For a star of 1 solar mass it only last about 100,000 years
Using Boyle's Law
(P*V)/T=K
where
P= Pressure,
V= Volume,
T= Temperature &
K= a Constant
Therefore T=(P*V)/K
we can calculate that as pressure inside the ball of gas increases so does the temperature. Eventually the temperature of the interior of the the star reaches a point where that nuclear fusion can take place.
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∙ 12y agoPrimarily hydrogen, the most common element in the universe. When a cloud of hydrogen starts collapsing under its own gravity, it can (if nothing disturbs it) collapse into a proto-star, or "pre-star". If there's enough mass, the central pressure and temperature will increase as everything falls together, and eventually hydrogen fusion will begin. This is when the star is born, when the hydrogen begins fusing into helium.
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∙ 10y agoHydrogen, mostly. Some helium, and traces of heavier elements.
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∙ 11y agoNGC 7538S is one of the most massive protostars known.
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∙ 8y agoA protostar is a star that is still is still in the process of forming and has not yet driven away the surrounding envelope of gasses from its parent nebula.
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∙ 13y agothe elements are hydrogen and helium cloud
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∙ 12y agoSee related link for a pictorial
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∙ 10y agoMostly hydrogen & helium
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∙ 11y agoHelium, Hydrogen, and Lithium
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What is the temperature of a protostar?
the color of the protostar is red
Why does the temperature of a protostar increase?
As gravity pulls more material toward the center of the protostar, the pressure inside the protostar builds.
How long does a protostar live?
A protostar will live as long as 100,000 years. After material stops falling on the protostar it will enter then T Tauri star phase.
Will a protostar form near the end of a star's life cycle?
No, a protostar is basically the BEGINNING of a star's life cycle.
What must happen before a protostar will glow?
A protostar isÊthe beginning or birth of a star. Before a protostar can glow it must go thru a period of contraction in order to allow nuclear reactions at its core.
What are all the gases in a protostar?
Mostly hydrogen (with some helium, deuterium, and lithium). Other elements (all other elements) are added as the date of formation of the protostar comes closer to the current date.
What is the temperature of a protostar?
the color of the protostar is red
The earliest stage of a stars life is called a?
A Protostar.
Why does the temperature of a protostar increase?
As gravity pulls more material toward the center of the protostar, the pressure inside the protostar builds.
How long does a protostar live?
A protostar will live as long as 100,000 years. After material stops falling on the protostar it will enter then T Tauri star phase.
Are protostar a star?
A protostar is more like a stage previous to a star - before it ignites.
What is the life span of protostar?
A protostar takes about 100,000 years to reach the main sequence.
Was the Sun a protostar about a million years ago?
No. The sun was a protostar about 4.6 billion years ago.
Do prostars become stars?
The term is "protostar", not "prostar". Yes. A protostar is an early stage of a star.
Compare the elements in an early prostar and those in a young star formed star dust of older stars?
A protostar has 100% Hydrogen. A young star has a Helium core.
What is a binary protostar?
"Binary" means there are two stars. And "protostar" means the stars are in an early, or preliminary, stage.
Who the heck thinks the question what is a protostar means what does a protostar look like?
Apparently someone not paying ATTENTION.
