Stars: The Life Cycle Of A Star

Better Essays
A star is known as “a fixed luminous point in the night sky that is a large, remote incandescent body like the sun” (Oxford Dictionary). The life cycle of a star is a very complex and magnificent process. Every star starts out as a nebula and have their own physical features. They all evolve and turn into something beautiful.
Every star's physical features vary. Their diameters can range from 450 times smaller to 1,000 times larger than the sun. Temperatures expand from 3,000 degrees Celsius to over 27,000 degrees Celsius, such as the star named Bellatrix. Temperatures determine the color of each star. Hotter stars are blue and cooler stars are red. The sun is about 5,000 degrees Celsius, which is why it’s yellowish. Although they are all
…show more content…
These include red dwarfs and yellow dwarfs. Red dwarfs are the most common star in the Milky Way Galaxy that is small and cool. Yellow dwarfs are also known as G-Type main sequence stars; they are also small. Giants and supergiants are old, large stars. Red giants are usually orange and are about six hundred light years away from Earth. Blue Giants are hot, blue stars that burn helium. Supergiants are the largest type of known star, and are sometimes as big as our entire solar system. When they die, they supernova and turn into a black …show more content…
White dwarfs are small and hot, mostly made of carbon. After a red giant loses its outer layers, this is what’s left. They are about the size of Earth, but a lot heavier. A brown dwarf has too small of a mass to have nuclear fusion. A neutron star is very small and super-dense star that is composed mostly of tightly-packed neutrons. It has a thin atmosphere of hydrogen. A pulsar is a rapidly spinning neutron star that emits energy in pulses. A star with eventually use up most of its hydrogen, and be left with helium, releasing heat and light. Now, there isn’t enough pressure crushing down on the star to have a reaction with helium. Nuclear reaction ceases inside the star. Since there now isn’t any outward push from fusion, the star starts to collapse. This collapse begins to create more and more pressure inside the star until it is adequate enough to have the fusing process of helium begin in the core, while also some of the remaining hydrogen burns outside of it. The products the helium burning is carbon and oxygen. The star swells, and depending on its size, either becomes a red giant or a red supergiant. When the core is hot enough, the helium starts to fuse into carbon. Once the helium gets used up, the core expands and starts cooling down. The core finally cools into a white dwarf, then a black

Related Documents

  • Good Essays

    Stars Life Cycle

    • 1027 Words
    • 5 Pages

    the night and what do you see? Millions of twinkling lights, also known as stars. Stars are one of the most popular astronomical objects and represents the building blocks of galaxies. A star is defined as a vast ball of gas held together by its own gravity. The nearest star to earth is the Sun. Similar to a living organism, stars have a life cycle in which they are born, they develop and grow, and eventually die. Stars begin as a vast cloud interstellar dust (mostly carbon or silicon) and hydrogen…

    • 1027 Words
    • 5 Pages
    Good Essays
  • Good Essays

    The Life Cycle of Stars The life cycle of a star is an incredible, miraculous phenomenon that begins with just two elements: helium and hydrogen. The result is the all well known star that is seen twinkling in the night sky and also what lights up the day here on Earth. There are hundreds upon thousands of stars that take on many different sizes and colors. Depending on the size of the star from its birth, the star could take two paths at the end of its life: turn into a nebula leaving behind a white…

    • 1033 Words
    • 5 Pages
    Good Essays
  • Amazing Essays

    Female Pop Music Essay

    • 1561 Words
    • 7 Pages

    Female pop stars have been a force to reckon with within the modern music industry and have dominated music charts around the globe. Each female pop star creates her own unique sounds, lyrics and catchy music to entice a fan base to follow them. However, are female pop stars really that different? Jennifer Lena argues in "Chapter 2: Three Musics, Four Genres: Rap, Bluegrass and Bebop Jazz" that "music histories are full of hints that there is a pattern to the evolution of communities of sound" (2012:…

    • 1561 Words
    • 7 Pages
    Amazing Essays