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A star forms when a very big cloud of gas contracts under the influence of its own gravitational force. As this contraction takes place the object emits energy. This energy is called fall energy. As a result of this contraction the core gets denser and hotter. When the core reaches a temperature of about 3 million Kelvin, it starts to emit light, because of nuclear fusion ( Krane, K.S) reactions in the core. At this stage the gas cloud will stop its contraction because now the gravitational force is in equilibrium with the pressure build up by the hot gas. When this starts to happen you can say that a new star is born.
Planet formation
A planet on the other hand is build up out of the dust that surrounds a star. When a star is formed there is still a disk of gas surrounding it. As this gas cools, it condenses and forms solid grains. These grain particles accrete into large bodies called planetesimals, which then collide and accrete to make protoplanets. These protoplanets evolve into planets like the planets in our own solar system.
So the formation of a star is totally different from that of a planet. This is the main difference between a star and a planet. If an object has a mass of 0.084 times the mass of our own sun (85 times the mass of Jupiter) the core reaches a point where it can start the process of nuclear fusion in its core (see fig.1). If the mass is smaller than this, the lowest temperature to support nuclear fusion will never be reached and the object will never shine like a star. But can we call all of these objects planets? No, objects with a mass between 85*Mj (85 times the mass of Jupiter) and 13*Mj can't sustain nuclear fusion of elements like hydrogen (H) and helium (He) but can support the fusion of two protons into deuterium (D), early in their lifetime. These objects are called brown dwarfs. They form the transition between stars and planets.
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What is the same thing of planet Saturn Uranus and Neptune?
gas planet
Are the planets nearer to the stars?
Sometimes. The Solar System with all the planets is a tiny thing compared to the distance to even the nearest star. When you see a planet near a star in the sky, it's in line with that star and therefore it's closer to the star than we are, but the difference in distance is extremely slight. At other places in its orbit the same planet could be further away than we are.
Is revolve and revolution the same thing?
No, but the two are related. An orbit is the path taken by a planet around a star (or by a satellite around a planet). A revolution is the amount of time it takes said planet or satellite to complete that orbit once. Think of revolution as time, and orbit as place.
What is a large spherical body that orbits a star?
Generally a planet.An object that orbits a star can be defined as a planet.
What is the difference between a planet a star a galaxcy and the universe?
A planet orbits a star (like Earth orbits the Sun). Stars are very large lumps of matter giving off light and heat and possibly having their own planets circling them. But they are not linked to one another in the same way as a planet is linked to its sun. Galaxies are clusters of stars - millions of them. The universe is the whole thing, all things collectively.
What is the morning star and evening star?
They are the same thing, which is the planet Venus.
What is the cow noise on Movie Star Planet?
I have no clue and I am wandering the same thing
What rhymes with stars and means the same thing?
Someone answered Mars. Mars is NOT a star, it is a planet.
Is every planet a star?
A star is a completely different thing from a planet. In other words no star is a planet.
How do you earn diamonds on Movie Star Planet?
go to buy diamonds and get u some diamonds I asked the same thing it gave me this same an it told me the same thing if this doesn't help ask for more info
How do you become a musicstar in Movie Star Planet?
There's no such thing.
Is a planet a place or a thing?
It's both, actually. The Earth is a planet. And a planet is a thing. It's a noun.
What is the same thing of planet Saturn Uranus and Neptune?
gas planet
Is the Movie Star Planet hack thing safe?
depends on the one you get
What planet is the closest star to earth?
Planets and stars are not the same. Venus is the closest planet, on average. The sun is the closest star.
Is Sirius A an Earth-like star?
No. There is no such thing as an "earth-like star" as Earth is a planet, not a star. Sirius A is a star that is larger and brighter than the sun.
Are the planets nearer to the stars?
Sometimes. The Solar System with all the planets is a tiny thing compared to the distance to even the nearest star. When you see a planet near a star in the sky, it's in line with that star and therefore it's closer to the star than we are, but the difference in distance is extremely slight. At other places in its orbit the same planet could be further away than we are.
