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A star remains relatively constant in size because the force of gravity is in equilibrium with the pressure caused by the fusion at the core.

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What stage is our sun in right now?

Our sun is a main sequence (dwarf) star. It's expected to remain so for the next 5 billion years or so. After that it will expand briefly into a red giant, then collapse into a white dwarf.


How does sun fit into the star life cycle?

The Sun is currently in the main sequence phase of its life cycle, where it fuses hydrogen into helium in its core. Eventually, it will exhaust its hydrogen fuel and expand into a red giant, shedding its outer layers to form a planetary nebula. Finally, it will collapse into a white dwarf, slowly cooling down over billions of years.


What is life cycle of the sun?

The Sun is a G-type main sequence star. The Sun is 4.5 billion years old and will continue to fuse hydrogen into helium for approximately another 5 billion years. At this point the Sun will leave the main sequence as strong convection currents arise, becoming a red giant. During it's red giant phase, the Sun will fuse helium into heavier elements such as carbon.The outer layers of the Sun will escape as a planetary nebula, marking the end of the red giant phase. The core of the Sun will cool and contract, becoming a white dwarf.


Stars leave the main sequence when they?

Stars leave the main sequence when they have exhausted their core hydrogen fuel, causing them to expand into red giants or supergiants. This transition marks the end of stable nuclear fusion in their cores and the beginning of the next phase in their lifecycle.


What is the main source of energy of a star as it grows in size to becomes a red giant?

A main sequence star burns hydrogen to helium. Once a main sequence star exhausts all of the hydrogen, it begins to expand and burn helium causing if to become a red giant.

Related Questions

What stage is our sun in right now?

Our sun is a main sequence (dwarf) star. It's expected to remain so for the next 5 billion years or so. After that it will expand briefly into a red giant, then collapse into a white dwarf.


Which symbols do you use to expand and collapse the display of folder hierarchies?

+ and -


What can Business documents can include?

includes the ability to collapse or expand a document


Will the sun expand?

It will indeed expand to a red giant in about 5 billion years. It will then subsequently collapse to a white then brown dwarf star.


Can a star be born whenever a nebula expands?

No. Stars are born when nebulae collapse, not when they expand.


What does acid rain do to metals?

over a period of time it will make the metal expand and will collapse if it is a bridge or something


Why would lungs collapse if you made a hole through the skin and muscle into thoracic activity?

The lungs has a negative pressure. When air enters that space, it fills in the lung cavity making the lungs unable to expand and collapse.


Why doesnt the abyss freeze?

there is to much preasure down there. ice has to have a way to expand when it frezes. if there is too much water on top of it, it cant expand because of all of the weight.


What happens to rocks during the day?

during the day the rocks expand


Why doesnt the earth get bigger when the new crust is made?

Because the old one is destroyed. So it doesn't expand.


What doesnt have a fixed shape or volume?

Gases do not have a fixed shape or volume; they expand to completely fill the container they occupy.


Why a mercruy in a glass thermometer holes up a uniform stem?

because it is cheap and it does not expand on heating therfore it doesnt break