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Why didn't Jupiter become a star?

Updated: 8/11/2023
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11y ago

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It has to do with heat and gravitational pull, in order to be considered a star it needs to be over a certain temperature.

Jupiter is not a starIt is not giving off visible light, and the gases aren't hot enough for nuclear fusion to happen. A star is created when gases get squeezed so hard that nuclear fusion happens, and begins to become a protostar. Jupiter did not go through this process, the gases on Jupiter are being held by the sun's gravity and posibly a rocky core inside Jupiter.

Jupiter was almost a star it just failed to accumulate enough mass during it's formation all it needed was a couple hundred times more mass to make the transition

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12y ago
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12y ago

Jupiter is basically not big enough to react the two elements (helium and hydrogen) to burn, and so causing it to not become bright as there is no reaction to cause the energy to burn.

Really lucky actually, Because if Jupiter was a star, NONE OF US WOULD BE HERE! That's because of the intense heat that would be emitted by both the sun and also Jupiter.

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13y ago

Because Jupiter does not have enough mass.

To become a star, enough mass is required to force the temperature of the core above 10 million degrees kelvin. At that point hydrogen to helium conversion begins and the star "ignites" or "burns".

Jupiter does not have enough mass to begin that process.

To become a star Jupiter would have to be about 75% more massive.

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11y ago

Jupiter didn't become a star because it was to small to undergo nuclear fusion. crazy

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14y ago

Jupiter does not have a nuclear furnace at its heart, it is therefore a planet, not a star

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12y ago

It is made of different material.

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Q: Why didn't Jupiter become a star?
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Continue Learning about Astronomy

Is it possible to make Jupiter a star if you applied more mass to it?

Jupiter has a mass of 0.001 Solar Masses. A star needs at least 0.1 Solar Masses, so if you multiplied Jupiter's mass by at least 100 it would become a star.


Is Jupiter a star?

NO ... Jupiter is a planet ... Jupiter only needed a couple hundred times it's current mass to become a star, but since it failed to achieve this task it is only a gas giant planet


Why do people call jupiter a near star?

Jupiter is called a near or failed star because it is not massive enough to be classified as a star. It would have 80 times more mass to be called a star.


Why is Jupiter sometimes referred to as a Failed star?

Good question. It is unlikely, though, as there simply is not enough matter in Saturn to have enough gravitational pull to produce enough heat at the centre to induce thermonuclear reactions to form a star - even a small one. Even Jupiter, which is much more massive, is nowhere near massive enough. This idea has been talked about for years. Arthur C Clarke, probably the greatest science fiction writer (well, one of the greatest with Isaac Asimov) and visionary of the 20th century suggested that very thing in 2011 - the sequel to 2001: A Space Odyssey. In the sequel, the alien monolith appears in Jupiter's Giant Red Spot and causes Jupiter to ignite into a star, thus becoming 'Lucifer' the source of energy which helps thaw Europa's oceans (one of Jupiter's moons) and create a spurt in the evolution of life there. Sadly, however, this is all fiction. Even where planets much larger than Jupiter have been discovered in orbit round other stars, these too have been simply too small to become suns in their own right. So to call Saturn a 'failed' star implies that it could have possiblybecome a star but somehow failed to achiieve this. In the same way, I have 'failed' to become a mother. But as I am male, then I could not possibly have 'failed' in this task (I am a father though - twice over!). So, as Saturn could never be a star to begin with, in that sense, it could not have failed.


Did the solar system almost become a binary star system?

No, the Solar System had a long way to go to become a binary star system. If Jupiter had been twice the mass, it's interior would have had enough pressure and high enough temperature to generate nuclear fusion, and it would have become a dwarf sun.Even so, Jupiter radiates more heat than it receives from the sun.

Related questions

If Jupiter were to become a star then your solar system would become?

Part of a binary star system.


Can Jupiter the planet become a star?

No, it will always be a planet.


Why is Jupiter was named after the Roman Jupiter?

Because it is the brightest planet. You would think its because its the biggest but the ancient Romans didnt have telescopes so they didnt know how big Jupiter is. They just saw how bright it is ( it outshines even Sirius ( The North Star)) and named it after their king of gods.


What are the release dates for Johnny Jupiter - 1953 How to Become a Movie Star 2-7?

Johnny Jupiter - 1953 How to Become a Movie Star 2-7 was released on: USA: 17 October 1953


Is Jupiter close to becoming a star?

Jupiter was going to become a star but when studied closely, scientists found that it was not massive enough to cause nuclear fusion in its core


Is it possible to make Jupiter a star if you applied more mass to it?

Jupiter has a mass of 0.001 Solar Masses. A star needs at least 0.1 Solar Masses, so if you multiplied Jupiter's mass by at least 100 it would become a star.


Is Jupiter a star?

NO ... Jupiter is a planet ... Jupiter only needed a couple hundred times it's current mass to become a star, but since it failed to achieve this task it is only a gas giant planet


Did Jupiter almost become a star when your solar system was forming?

78 percent of the material that did not go to the sun, went to jupiter.


Could a supernova on Jupiter cause the earth to be pushed off it axis?

Only a very, very few stars have mass enough to become supernova. Jupiter is a planet not a star. It is far to small to become a star, let alone a supernova.


Why is the Sun a star while Jupiter is not?

Although Jupiter is comprised of similar materials to the Sun - mainly hydrogen and helium, it does not have enough mass to heat the core of the planet to 10,000oK. This is a requirement for nuclear fusion to occur and without that, Jupiter is not a star, but a planet. For Jupiter to become a star, it would have to accumulate 75% more mass to achieve this.


Was Jupiter going to become another sun?

No. Many years ago this was considered a possibility. However we now know that Jupiter is far too small to become even the smallest star.


Is there a star in Jupiter?

No. Jupiter is a planet, so it does not have a star inside it.