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Jupiter and Saturn. There original neubulae was too small and once all the clouds came in the gravitational force couldn't blow up the gases. Depending on what type of gas planet there are, they could be very close to becoming a star or even 20 times smaller then for it to activate.
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What planet is considered a failed star?
Jupiter is considered a failed star because it is made mostly of gas and lacks the mass needed to sustain nuclear fusion like a true star.
What is a failed star?
A "failed star" is a loose term, to describe a ball of hydrogen and helium, that didn't have enough mass to initiate nuclear fusion and become a "real" star. These "stars" are known as brown dwarfs. [See related question]. Some people believe Jupiter is a failed star, but this is not the case.
Is Jupiter a failed star?
No. A true "failed star" is considered a brown dwarf. Though they commonly have a very similar diameter of Jupiter, they are massive enough to fuse deuterium ('heavy hydrogen'), and this distinguishes them from the heavy, dense planets like Jupiter.
Is Jupiter becoming a star?
No, and it never will. It is a failed star.
What is a falled star?
Assuming that the question refers not to a falled (??) star but to a failed star, the answer is that it is a star that does not have enough mass for hydrogen fusion to be sustain. Such stars are also known as brown dwarf stars.Assuming that the question refers not to a falled (??) star but to a failed star, the answer is that it is a star that does not have enough mass for hydrogen fusion to be sustain. Such stars are also known as brown dwarf stars.Assuming that the question refers not to a falled (??) star but to a failed star, the answer is that it is a star that does not have enough mass for hydrogen fusion to be sustain. Such stars are also known as brown dwarf stars.Assuming that the question refers not to a falled (??) star but to a failed star, the answer is that it is a star that does not have enough mass for hydrogen fusion to be sustain. Such stars are also known as brown dwarf stars.
What is the name of the failed star?
Obama
Do stars have moons like planets do?
No. An object orbiting a star would not be called a moon. If an object orbiting a star is large enough and is the dominant object in its orbital path, then it is considered a planet. A similar object that does not dominate its orbital path is a dwarf planet. Smaller objects may be called asteroids or comets.
What are planets with no orbit?
If an object that would otherwise be considered a planet doesn't orbit a star, it is known as a "rogue planet".
Is an asteroid considered a shooting star?
No. A shooting star, scientifically called a meteor, is an object from space that is passing through the atmosphere, heating the air until it glows brightly.
Which planet is often referred to as a "failed star"?
Jupiter is often referred to as a "failed star" because it is made mostly of gas and lacks the mass needed to sustain nuclear fusion like a star.
What planet known as failed star''planet?
Jupiter
If a protostar doesn't undergo a nuclear fusion what will it turn into?
If a protostar does not undergo nuclear fusion, it will not become a star. Instead, it will either become a brown dwarf, which is a failed star that lacks the mass to sustain nuclear fusion, or it will simply cool down into a cold, dense object known as a sub-stellar object.
