Life Cycle Of A Star

Red dwarfs are the only stars undergoing the hydrogen fusion process, other types include brown, white and black. The mass of a red dwarfs ranges between 1/3 and 1/12 of the sun's mass, and shine only 1/100 to 1/1,000,000 as bright as the sun. Red dwarfs due to their small size, undergo the fusion process much slower than a solar mass star. Therefore using there supply of hydrogen much less quickly compared to a main sequence star. Dwarfs can only live for 100 trillion years. When dwarf stars die, they simply wink out of existence, as they do not have enough pressure to interfuse helium. Hence, they simply grow dimmer and cooler as they float through space.

Due to the fact that supergiant stars are much greater in mass than any other stars it is shown that they will form, live and die more quickly than a main sequence star. This is due to the reason of its greater mass as this results in gravity sueezing on the star's core which creates a greater pressure, producing a faster fusion rate. The life span of a supergiant star is usually set to be 10 to 15 million years compare to that of a main sequence star being 10 billion years. The core of a supergiant has turned to carbon. The reason as to which supergiant's mostly grow red is that it's outer layers have expanded, meaning it has a much greater volume of heat, although it is making the same amount of energy as any other star, even though it is cooler. The difference between a supergiant and main sequence star is that supergiant's need pressure to merge it's cores carbon into iron, this process of which takes energy instead of giving it. As energy is lost, the star can no longer portray its balance between the exterior pressure and gravity pushing in on itself. The end result of this is gravity wins out, and the core collapses in a aroused explosion known as a supernova. From this stage in the process, it must be decided on the solar masses of the supergiant to determine whether it will become a neutron star or turn into a black hole.