When we look up into the sky, what do we see? During the day, we often will find the sun. The sun is much more than a ball of fire that we see in our daily lives. The sun gives earth life, from the condition of the season of the life that is produced. Overall, when we think of the sun we think of heat and light, but one might question; how does the sun produce the heat and light that is necessary for the earth to sustain life? The sun is also known as a star, just like the stars we see at night that illuminate the night sky. Stars are categorized by the Stellar Classification system, which accounts for spectra appearances from the light of a star. According to the chart, the sun is considered a G2 V, the G class of stars have a temperature between “5200 to 6000 K and have a weaker hydrogen line and neutral metals,” (“Stellar Classification,” 2014). A common name for the sun is the dwarf star, and “the V classification indicates that the sun is a main-line sequence star and generates energy by nuclear fusion,” (“Sun,” 2014). Similar to the Earth’s structure, the sun is made up of an inner core and atmosphere, having an understanding of the structure of the sun will help in understanding how heat and light are produced.
The innermost lay of the sun is known as “the core.” The core of the sun helps to begin the generation of heat and light, which feeds the Earth’s life. The inner most portion of the sun has the highest temperature and the most pressure. Based upon the category of the sun in the stellar classification, it is made up of hydrogen and generates energy from nuclear fusion. Nuclear fusion reaction is “when two or smaller light nuclei combine to form a larger nucleus,” (Young, 2012). The hydrogen atoms perform nuclear fusio...
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...11 May 2014, from http://solarscience.msfc.nasa.gov/interior.shtml
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As we know that fusion reaction takes place at very high temperature, fusion is a predominant process in sun. the temperature of sun is 3X107 degree Celsius, so nuclear fusion reaction continuously take place. The Sun which gives energy to entire universe depends on the energy released by fission of hydrogen nuclei into helium nucleus.
One of the main causes of the increase in Earth’s temperature is greenhouse gases. Greenhouse gases are gases that are trapped in the atmosphere. The gases consist of carbon dioxide, nitrous oxide, and methane. They trapped heat from the sun from returning back into the atmosphere. Over the last 100 hundred years we have increased the earth’s average temperature by 1.4 degree fahrenheit (Carey). This is mainly due to the fact we are producing ten times more greenhouse gas than before. It is exp...
The sensitive instruments aboard the SOHO spacecraft have already helped scientists here on Earth discover and explain some of the mysteries of the Sun as well as to confirm some of their theories they previously held. For example, in May of 1998 with the help of the Michelson Doppler Interferometer scientists were able to see with greater clarity the giant convective cells inside and on the surface of the Sun.
Our sun is the central pivot point to which or entire planet and solar system is built around. With out it all life on our planet would cease to exist. Within this paper we will explore how our Sun and solar system formed and came to resemble what we see today.
The Sun is a huge, bright sphere that is mostly made up of gas that is about 5 billion years old. The Sun is the closest to the Earth, it is 145 million km distant (this distance is called an Astronomical Unit). The next closest star is 300,000 times further away. There are probably millions of similar stars in the Milky Way galaxy (and even more galaxies in the Universe), but the Sun is the most important to us because it supports life on Earth.
The energy given off by a star through nuclear burning heatsits interior to many millions and, even in some cases to Pleiades Star Cluster hundreds of millions to billions of degrees Fahrenheit. It causes heat to flow from the interior toward the surface, where it is released out into space and makes the star shine. Because stars are only so big, they will eventually use up their nuclear fuel and run out of energy. (University of Oregon, Unknown)
sun as a principle of heat and light for the earth is a symbol of the
The very symbol of life – the elemental force of the Sun – is rendered
One of the major things we all see in the night sky is stars. Stars are balls of cosmic energy. They can produce heat, light, and other forms of radiation. They are made up mostly of gas and plasma. The stars we see vary in their intensity, due to the distance they are from us and can also be due to how
There can be several solutions to the puzzle. One is that we do not understand the Sun well enough.
Changes in the magnetic field of the sun affect us here on earth in a number of interesting ways. This magnetic field is caused by the flow of electrically charged ions and electrons on the sun, and if it didn't exist, the sun would be a much more boring star. The 11-year cycle of the sun's magnetic field accounts for many of the cool features of the sun: sunspots, solar flares, and aurora borealis. At the beginning of the cycle, the magnetic field is weak and there are very few sunspots; later, at the peak of the cycle, the magnetic field is strong, and there are many sunspots. Sunspots are relatively cool areas that appear as dark patches on the face of the sun. They occur where magnetic field lines are twisted below the surface. The period of time when the magnetic field is strong and there are many sunspots is called a solar maximum. The sun approached one of its solar maximums in the year 2000, and this maximum affected the conditions on earth.
The Sun is located at the center of our solar system and is orbited by eight major planets in our solar system which includes: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto even though it’s not considered a planet. The sun consists of 99.86% of the mass in the solar system. Also, due to its size, heat, and chemical makeup, it’s a medium-sized star and classified as a G2 dwarf. Based on the average lifespan of a G2 star, the current age of the sun is predicted to be 4.6 billion years.
Our Sun continuously converts hydrogen into helium and with this process it provides the essentials for life processes. In doing this it controls “our climate, provides light, raises tides, and drives the food chain” (Schaefer 34). Our Sun also has influenced many beliefs now and in the past. History has documented Sun worshipping religions while many current societies use solar calendars (Schaefer 34).
Now what is going on in the sun? When we look up we just see a bright object that makes us warm, sometimes gives us sunburn and gives us light, on the contrary. The sun is a mass of incandescent gas, a gigantic nuclear furnace where hydrogen is built into helium at a temperature of millions of degrees. The sun is so hot that everything on it is a gas. About 75% of the sun is made up of hydrogen, about 23% is helium and the remaining percent consist of iron, copper, aluminum, and about 70 more elements that are comm...
Solomon, S. (Ed.). (2007). Climate change 2007-the physical science basis: Working group I contribution to the fourth assessment report of the IPCC (Vol. 4, pg 501). Cambridge University Press.