A star’s life is long compared to that of a human, but we can see the stages of stellar birth, aging, and death in the heavens. The spectral class of four stars are shown in comparison with a Hertzsprung-Russell diagram. 0 times. Some are 50x that of the Sun. A star begins as a cloud of interstellar gas, mostly made of hydrogen.Eventually, small density differentials begin the cloud begin to create gravity wells, pulling other particles closer and condensing them. The word life span is different from the life cycle. At this point, it leaves the main sequence. The contracting cloud is then called a protostar. Massive Stars - The Life of a Star of about 10 Solar Masses. Heavy stars turn into supernovae, neutron stars and black holes whereas average stars like the sun end life as a white dwarf surrounded by a disappearing planetary nebula. This is the remnant of the supernova Tycho Brahe observed in 1572. When the stars go out. A protostar is the earliest stage a few seconds ago. Over time, gravity pulls the hydrogen gas in the nebula together and it begins to spin. Then forms the Protostar, precursor to the star Main sequence star, or the normal star stage. Gravity can pull some of the gas and dust in a nebula together. Life Cycle of a Giant Star. They follow a pattern similar to many of the life cycles we see here on earth. Life Cycle of a Star — A STAR IS BORN - Worksheet Name: STAGES COMMON TO ALL STARS All stars start as a nebula. Eriksen et al. Eventually, a main sequence star burns through the hydrogen in its core, reaching the end of its life cycle. Stars go through a natural cycle, much like any living beings. The time frame in the life cycle of stars is entirely different from the life cycle of … Life Cycle of a Star and HR Diagram DRAFT. The life cycle of the star in stages . The larger the mass, the shorter the life cycle. Depending on the mass of the star, its lifetime can range from a few million years for the most massive to trillions of years for the least massive, which is considerably longer than the age of the universe.The table shows the lifetimes of stars as a function of their masses. First, the star is born from a nebula. The Life Cycles of Stars A star's life cycle is determined by its mass. Remnant or pre-planetary nebula. 0% average accuracy. Prev NEXT . 0. This cycle begins with birth, expands through a lifespan characterized by change and growth, and ultimately leads to death. Science. Based on the information, which star is most like the sun? The image is a colorized composite of low-energy x-rays (red) showing debris and high-energy x-rays (blue) showing the blast wave, plus the visible field of stars around it. Edit. The life span of a star . A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust in which it is born. 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