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
No, and it never will. It is a failed star.
there must be a critical mass.:)
A massive planet (comparable to Jupiter), orbiting around another star, and being very close to the star - so that it has a high temperature.
Jupiter almost became a second sun because it is a gas giant with enough mass to start nuclear fusion. However, it did not have enough mass to sustain the nuclear reactions necessary to become a true star.
Apart from the Sun, there is no star that appears as large as Jupiter in the sky. However, that's just because it's relatively close. Really, all stars are bigger than Jupiter.
The North Star is around 430 light years from Earth. Earth to Jupiter distance varies as the planets orbits The Sun. At their closest they are 628,743,036 million kilometres apart. At their most distant they are 928,081,020 million kilometres apart.
No. Jupiter is a planet, so it does not have a star inside it.
Jupiter is a planet. It has never been a star and never will be a star.
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.
The Sun is by far the nearest star to Jupiter.
Jupiter is not a star. It is a planet. However, there are stars that are smaller than the planet Jupiter.
Jupiter and stars are both spherical (ball-shaped) and they both orbit a larger body of some sort. Jupiter orbits our Sun, and stars orbit the center of their galaxy, and sometimes stars orbit another close star.