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In order for a star to form, gas from an interstellar cloud has to be gravitationally attracted toward a center of gravity. The strength of the gravitational attraction depends upon the amount of mass (and its density, which of course increases as the star is in the process of being formed). It takes a certain amount of mass to create a star, otherwise all you will have is an interstellar gas cloud.

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12y ago
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11y ago

Hydrostatic equilibrium has nothing to do with the mass of the star but the compression, due to gravity, balanced by pressure of the star.

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11y ago

Hydrostatic equilibrium occurs when compression, due to gravity, is balanced by a pressure gradient, which creates a force in the opposite direction. In stars, the pressure gradient appears as a result of the huge quantity of thermal energy (which acts outward) created by nuclear fusion reactions. It is gravity and this thermal energy that are in equilibrium.

It's a bit like blowing a balloon up, the inward pressure is counteracted by the external pressure of the atmosphere. In addition, when we consider stars, this means that the larger the mass of the star, the higher the temperature must be to achieve this balance. Larger stars will use up their supply of hydrogen more quickly and live a shorter life.

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15y ago

Mass. The larger the star, the faster it consumes its fuel.

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14y ago

Mass. That's all; everything about a star is determined by the initial mass.

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11y ago

A star's luminosity depends on two characteristics: sizeand temperature of star.

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13y ago

Anywhere between a few millions and trillions of years, depending mainly on the star's mass.

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14y ago

It depends on it's size

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11y ago

They weigh each star with a scale

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14y ago

Mainly on its mass.

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Q: How is hydrostatic equilibrium in a star determined by its mass?
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Related questions

What are the two forces that are in equilibrium in a star?

Hydrostatic and Equilibrium


A balance between the weight of a layer in a star and the internal energy pressure that supports it is?

hydrostatic equilibrium


What effects does stellar equilibrium have on stars?

The properties of a main-sequence star can be understood by considering the various physical processes occurring in the interior. First is the hydrostatic balance, also called hydrostatic equilibrium. This determines the density structure of the star as the internal pressure gradient balances against the force of gravity.


How a star dies is determined by its age shape position in its galaxy mass?

No, how a star dies is determined by its mass.


What is one force that is responsible for maintaining the balance of a star during the main sequence stage?

Hydrostatic equilibrium [See related question]


Stellar equilibrium relies on fusion and gravity to maintain stars in their current form?

Yes, a stable star is in equilibrium, called hydrostatic equilibrium, when the outward pressure from heat caused by core fusion processes balances the inward pull of gravity. There are other factors which alter the form of stars such as their rotation or gravity from external sources such as a nearby mass.


When a star's inward gravity and outward pressure are balance the star is said to be?

Hydrostatic equilibrium occurs when compression due to gravity is balanced by a pressure gradient which creates a pressure gradient force in the opposite direction. The balance of these two forces is known as the hydrostatic balance.


Which property of a star can be determined from binary star system?

Binary stars are ideal to determine the mass of the components.


Which of the following information is not necessary when classifying a star A size B temperature C shape D brightness?

Any star is going to be in hydrostatic equilibrium, so "shape" is not really a factor.


How is the evolution of a star determined by its mass?

They weigh each star with a scale


The mass of a star can be determined by studying?

binary star systems


What is a hydrostatic equilibrium?

Hydrostatic resistance is another term of hydrostatic pressure. This is the pressure exerted by a fluid due to the force of gravity. This increases with depth because of the increasing weight of the fluid above a certain point.