Given that Jupiter, Saturn, and Uranus are Gas Giants, what would it take for them to become stars?

Question

?For example, would Jupiter and Saturn combined be enough gas material to form a small, medium, or large size star?

Answer 1

well in uranus there is far to many other substances, stars have mostly hydrogen at the start.

saturn and jupiter are mostly hydrogen. it has nothing to do with adding more elements. you want as much hydrogen as possible.

for jupiter all you would need to do is get 74 other jupiter's and then combine them, and you've got a star. obviously impossible. jupiter is way to small to become a star, ever.

Answer 2

No, Jupiter would need to be about 80 times as massive to be a star, and 13 times just to make it to brown dwarf.

Answer 3

The moons of Jupiter nor its distance from the sunlight have something to do with the size of an afternoon there. Earth's day is 23 hours fifty six minutes long because of the fact it is how long it takes it to spin one time on its axis. Jupiter's day is 9 hours 50 minutes because of the fact it is how long it takes it to spin one time on its axis.

Answer 4

They will never become stars. All of them combined do not have enough mass.

Answer 5

Someone lighting up a cigarette on the planet?

Answer 6

no...they'd need heliem and other gases that the sun has...not planets.
like heat.