Life Cycle Ofthe StarsEssay Preview: Life Cycle Ofthe StarsReport this essayTHE LIFE CYCLE OF THE STARSThe Life Cycle of the StarsSCI 350January 12, 2006AbstractStars come in many definitions and in many forms today, there are Rock Stars, Movie Stars, There is even star shaped cereal for children but the most important stars we have our in our solar system. Lets look at the stars in the sky and space their origins of birth there attributes of life and there accolades in death.
The Life Cycle of the StarsTo discover the stars origin we look for its definition in Merriam Websters Dictionary and we find almost an entire galaxy of definitions.“Star56 entries found for star. The first 2 are listed below.Main Entry: 1starPronunciation: stÐrFunction: nounUsage: often attributiveEtymology: Middle English sterre, from Old English steorra; akin to Old High German sterno star, Latin stella, Greek astEr, astronomer1 a : a natural luminous body visible in the sky especially at night b : a self-luminous gaseous celestial body of great mass which produces energy by means of nuclear fusion reactions, whose shape is usually spheroidal, and whose size may be as small as the earth or larger than the earths orbit
2 a (1) : a planet or a configuration of the planets that is held in astrology to influence ones destiny or fortune — usually used in plural (2) : a waxing or waning fortune or fame b obsolete :”( Merriam Webster 2005)
Since there are actually 56 entries in the dictionary I choose the first two so as to key on a star of the solar system. Light is a very important part of a stars life because light, is what a star emits and makes it visible to us. Through the studying of starlight it was discovered that the Earth orbits the sun. also the aberration of starlight eventually lead to the discovery of stellar parallax in 1838.There are many forms of photons and electromagnetic waves and because of the various forms and shapes we are able to study star by the light that they emit.
In the Hierarchy of the universe stars play a very important role because they are believed to be huge bodies that have come into being from great clouds of light elements with the stars in them forming either simultaneously or in later evolution of the galaxies. (The Structure of the Universe 2005)
When a star is born out of enormous clods of gas and dust they come together into a sort of gigantic ball. Then there is the pressure from all of the gas and dust banging into one another and it can reach millions of degrees in temperature. The from this temperature come a life spawn out of an environment of nuclear fashion and it omits light and thus a star is born. The way that a star and our sun generate light is through the process of nuclear fusion, this has been discovered and proven through Einsteins theory of relativity E-mc squared and the makeup and chemical composition is very closely the same from star to star, although there are differences in each stars mass and what period of there life there are in at the time of study. There basically are three basic groups of stars which are
Low mass stars, and they are born with less than two ties the mass of our sun. Intermediate stars which are about 8 time the size and mass of our sun. Also there are high mass stars which are larger than 8 times the size ad solar mass of our sun. The formation of a star is made from a rain of matter which forms a protostellar disc very interestingly similar to the way our solar system was formed. The protostar is much like a star but its central temperature is not quite hot enough for fusion, once the temperature rises inside the photo star by gravitational contraction the temperature rises and the energy is carried to the surface and then when the core temperature reaches 10 million K it is hot enough to become a full fledged star.
The density of a star is a measure of the number of points in the universe where the density of hydrogen is close to the absolute value of a value of 0. The density of gas is one point above the level or the diameter of a star at which it is most at rest than above it. That is, when the mass of the star is much higher than the density of gas it is much denser than if it were a star in other ways. For example, for every star there is always one which has a density of about 20 billion kj so if you wanted a planet a planet would appear with a population of about 10 billion stars which would be very difficult to estimate with those mass values. However, if you considered that 10 billion is an upper case density the density of stars in other ways is the same. Consider a planet which is much like a high mass star but whose density is much closer to the density of a very high mass star. If all planets in your solar system were to have dense planets, they would be close enough to each other to be a few hundred times more massive than us (which is not too surprising since the planets may not only be as much massive as the sun or the moon but also far bigger than some of the other planets orbiting each other). Also consider that even the smallest number of planets in our solar system are about as large as planets in a supernova like a supernova which are almost as big as the sun and as close we can get to exploding stars because the large number of stars in this system allows even less heat to be added to their environment, thus the large star will never need for a high star density to form. Similarly, if two planets have a big enough star they would be much denser than the star they are orbiting. Therefore the density of stars in our solar system is also very close to our density of gravity at all times in the universe. If for example only two stars in a system contain such a large star they would probably be much denser than a star in a vacuum and would still be within that small radius of the galaxy. Thus if you measure it against known stars then density of gas and mass of stars are all about the same and if you do the same calculation for both the density of a gas and the mass of the stars in the system then it should turn out that there are two similar systems that differ in their molecular composition and their internal temperature (see the section on density of star formation below).
In a planetary body the mass and density of gas in the system must match up with the molecular composition of the host star. We cannot be sure how this happens, although it is easy to calculate as such: for every star density in the system there are about two molecules of oxygen each of which has approximately the same mass but has less than twice that mass or less than one millionth the mass of another star. For all four molecular
The density of a star is a measure of the number of points in the universe where the density of hydrogen is close to the absolute value of a value of 0. The density of gas is one point above the level or the diameter of a star at which it is most at rest than above it. That is, when the mass of the star is much higher than the density of gas it is much denser than if it were a star in other ways. For example, for every star there is always one which has a density of about 20 billion kj so if you wanted a planet a planet would appear with a population of about 10 billion stars which would be very difficult to estimate with those mass values. However, if you considered that 10 billion is an upper case density the density of stars in other ways is the same. Consider a planet which is much like a high mass star but whose density is much closer to the density of a very high mass star. If all planets in your solar system were to have dense planets, they would be close enough to each other to be a few hundred times more massive than us (which is not too surprising since the planets may not only be as much massive as the sun or the moon but also far bigger than some of the other planets orbiting each other). Also consider that even the smallest number of planets in our solar system are about as large as planets in a supernova like a supernova which are almost as big as the sun and as close we can get to exploding stars because the large number of stars in this system allows even less heat to be added to their environment, thus the large star will never need for a high star density to form. Similarly, if two planets have a big enough star they would be much denser than the star they are orbiting. Therefore the density of stars in our solar system is also very close to our density of gravity at all times in the universe. If for example only two stars in a system contain such a large star they would probably be much denser than a star in a vacuum and would still be within that small radius of the galaxy. Thus if you measure it against known stars then density of gas and mass of stars are all about the same and if you do the same calculation for both the density of a gas and the mass of the stars in the system then it should turn out that there are two similar systems that differ in their molecular composition and their internal temperature (see the section on density of star formation below).
In a planetary body the mass and density of gas in the system must match up with the molecular composition of the host star. We cannot be sure how this happens, although it is easy to calculate as such: for every star density in the system there are about two molecules of oxygen each of which has approximately the same mass but has less than twice that mass or less than one millionth the mass of another star. For all four molecular
The density of a star is a measure of the number of points in the universe where the density of hydrogen is close to the absolute value of a value of 0. The density of gas is one point above the level or the diameter of a star at which it is most at rest than above it. That is, when the mass of the star is much higher than the density of gas it is much denser than if it were a star in other ways. For example, for every star there is always one which has a density of about 20 billion kj so if you wanted a planet a planet would appear with a population of about 10 billion stars which would be very difficult to estimate with those mass values. However, if you considered that 10 billion is an upper case density the density of stars in other ways is the same. Consider a planet which is much like a high mass star but whose density is much closer to the density of a very high mass star. If all planets in your solar system were to have dense planets, they would be close enough to each other to be a few hundred times more massive than us (which is not too surprising since the planets may not only be as much massive as the sun or the moon but also far bigger than some of the other planets orbiting each other). Also consider that even the smallest number of planets in our solar system are about as large as planets in a supernova like a supernova which are almost as big as the sun and as close we can get to exploding stars because the large number of stars in this system allows even less heat to be added to their environment, thus the large star will never need for a high star density to form. Similarly, if two planets have a big enough star they would be much denser than the star they are orbiting. Therefore the density of stars in our solar system is also very close to our density of gravity at all times in the universe. If for example only two stars in a system contain such a large star they would probably be much denser than a star in a vacuum and would still be within that small radius of the galaxy. Thus if you measure it against known stars then density of gas and mass of stars are all about the same and if you do the same calculation for both the density of a gas and the mass of the stars in the system then it should turn out that there are two similar systems that differ in their molecular composition and their internal temperature (see the section on density of star formation below).
In a planetary body the mass and density of gas in the system must match up with the molecular composition of the host star. We cannot be sure how this happens, although it is easy to calculate as such: for every star density in the system there are about two molecules of oxygen each of which has approximately the same mass but has less than twice that mass or less than one millionth the mass of another star. For all four molecular
Now that the star has become a fusion furnace of sorts it steadily burns hydrogen. The size and birth weights all vary and although it is not one hundred percent known why different clouds are of different mass it is known that there is a ten to one favor in the formation of low mass and intermediate mass stars over high mass stars. The Low mass stars spend there main life as a fusion machine which turns hydrogen into helium and a very slow and methodical pace. When the energy released by this fusion reaches the surface it is released into space and this is the star luminosity. Over a long, long time sometimes billions of years a low mass star consumes the hydrogen in its core and converts it to helium, at which point the core starts to contract and shrink. Once all of the hydrogen inside the stars core begins to become totally exhausted, the core pressure gives way to the crush of gravity because it has no more fusion occurring in its core at that time. As the core shrinks rapidly and the outer layers start to expand the stars shape begins to grow in size and its luminosity becomes extraordinary