Star

Star

Star is celestial body that has its own light and consist of flaming gas. Space between one star to another star, is not empty space, but the collection of gas mixed with dust. That collection of gas and dust does not break because atoms in outer part is attracted to inside. Its attracted of outer part atom to inside is caused by the difference of gravitational force, that gravitational force of atom that is found inside is larger. As the effect of attraction of outer part atom to inside, the collection of gas and dust wrinkles and becomes dense, so temperature inside is high also that densing collection of gas and dust begin to emit light. This is forthcoming of a star called protostar.

Temperature in the center of protostar is higher, when it reaches 10 billion degree Celcius, it happens nucleate reaction where hydrogen is changed to be helium. The longer temperature in protostar increases and causes pressure, so the protostar does not wrinkle anymore, because the pressure inside is able to support the pressure of heavy outer part. If that process has happened, a new star has born.