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Related Topics

  • What is a coronal mass ejection?
    What is a coronal mass ejection?
    A massive solar flare. Here is a question, why must we put down at least ten words

  • What is the Sun?
    What is the Sun?
    The Sun is the star at the center of our solar system – this includes the inner solar system which consists of Mercury, Venus, Earth and Mars, the asteroid belt except Ceres which is considered as a dwarf planet such as Pallas, Davida, Eunomia and Juno and the outer solar system which consists of Jupiter, Saturn, Uranus, Neptune and the minor planet called Centaur. The Sun is made of different chemicals such as oxygen, carbon, nitrogen, silicon, magnesium, neon, iron and sulfur but it is mostly composed of 70% hydrogen and 28% helium. Aside from these chemicals, the Sun has several structures and these are: the Core, the Radiative zone, the Tachocline, the Convective zone, the Photosphere, the Atmosphere and the Photons and neutrinos.

  • Why does the sun look yellow from earth?
    Why does the sun look yellow from earth?
    It’s due to a phenomenon called diffraction. The sun is actually emitting white light which has a significant amount of blue-green waves along with other colors of the spectrum. The fusion process creates white light which after traveling to earth, turns yellow. It is a well-known scientific fact that white light is a combination of seven different colors. Therefore, the sun emits light of all these seven colors hence, having pure white light. This whiteness of the sun is visible during the afternoon when the sun is directly overhead. And the rest is done by diffraction. What is responsible for diffraction, you ask? It is our very own atmosphere. Diffraction is defined as the bending of light waves on meeting an obstacle. Rainbows are a phenomenon that occurs when white light is diffracted by a raindrop. The main principle behind diffraction is the wave nature of white light. The waves of different colored light have a different wavelength. An obstacle in its path splits the different colored waves of light because all colors have different wavelengths. Applying this concept to sunlight, the waves from the sun meet particles of the atmosphere and get diffracted. This diffraction is inversely proportional to the fourth power of wavelength, which means that the higher the wavelength the lesser the scattering. This is called Rayleigh’s scattering law. Since blue has the least wavelength, it gets scattered the most giving the sky its well known blue color. By the time, we reach the yellow spectrum of light has travelled through the atmosphere and doesn’t scatter anymore, hence the sun appears yellow. This is also the reason that during sunrise and sunset the sun appears red since light has to travel more distance when it comes from the horizon.

  • How is the Earth positioned in relation to the Sun?
    How is the Earth positioned in relation to the Sun?
    The Earth is positioned in relation to the sun depending on the days it takes for the Earth’s revolution. Although the Earth’s axis tilts the same way and is slanted to one side over the course of its revolution, how close or far it is to the sun can only be determined through our seasons. Winter, spring, summer and fall all suggest how close or far the Earth’s position to the sun is. If people who are living in the Northern Hemisphere are experiencing winter, then that means that Earth’s position is close to the sun. On the other hand, if people who are living in the Southern Hemisphere are experiencing winter, then that means that Earth is farthest from the sun.

  • Why is there no hard surface on the sun?
    Why is there no hard surface on the sun?
    The sun doesn't have a surface because the sun is producing light using gas and creating nuclear fusion using hydrogen to make helium aws its source of energy.

  • What is the sun mostly made of?
    What is the sun mostly made of?
    The Sun is mostly made of hydrogen and helium. The Sun has about 70% of hydrogen and about 28% of helium, and these two chemical elements are the reason why the Sun shines – hydrogen turns into helium through the process of nuclear fusion. However, astronomers said that there are there are several chemical elements in the Sun, but only approximately these chemicals have been found because some of them are too small for their instruments to spot and distinguish. Here are the a few more of the most common elements found in the Sun aside from hydrogen and helium: more or less 1% of oxygen, 0.40% of carbon, 0.096% of nitrogen, 0.099% of silicon, 0.076% of magnesium, 0.058% of neon, 0.014% of iron and 0.040% of sulfur.

  • What interesting facts about the sun you should know?
    What interesting facts about the sun you should know?
    There are numerous fascinating things that you should know about the sun. One of them is that it is a star. Another is that it is made of a ball of burning gas. Another fact states that the sun was present before the earth and dates back prior to earth in time. All of these features are important aspects that you should consider when you are researching about the sun. It is the center of our solar system and the source of light and energy on earth. It is a vital part of our system and has numerous facts associated with it.

  • What are the characteristics of the layers of the sun?
    What are the characteristics of the layers of the sun?
    The sun has an atmosphere which has three layers. It is composed of the photosphere, chromosphere, and the corona. It has a core which is made up of hydrogen gas. The pressure of the surrounding layers initiates a fusion reaction of the helium with the hydrogen. Then is the radiative zone, this is the zone that constantly absorbs the protons emitted from the core and then reemits them. The connective zone drops the temperature by 2 million degrees. This helps the light get through. Photosphere s the surface of the sun. It has sunspots and other surface features of the sun. Then is the chromosphere which is made of gases. Then is the corona which is the outermost and also the thinnest layer of the sun.

  • What gives the sun necessary energy for nuclear fission?
    What gives the sun necessary energy for nuclear fission?
    In the sun, nuclear fusion dominates over nuclear fission. The nuclear fusion process is likely because the sun’s core is full of hydrogen gases at temperatures where fusion is possible. The energy released from fusion in turn drives other fusion and fission reactions. Hence it is a continuing cycle where reactions drive other reactions keeping the sun burning for millions of years. Normally, initiating these reactions require energy. However, at the high temperatures present in the sun, the energy is already provided and is not a limiting factor anymore. Hence, the reactions continue to initiate other chain reactions keeping the cycle turning.

  • What are the vital statistics of the Sun?
    What are the vital statistics of the Sun?
    The sun has a number of vital statistics. According to research, it is 4.5 billion years old and is about 1.5 times 10 to the power of 8 km from the earth. It has a diameter of 1.39 into 10 10 to the power of 6 6 km. The total volume of the sun 1.41 into 10 to the power of 33 cm3. This is equal to 1.3 million times the volume of the earth. The sun has a mass of 1.99 into 100 to the power off 30 kg. It also has 3000 G sunspots. It has 1 G polar field. It is mostly composed of hydrogen and helium. The other gases including oxygen and carbon make up only a fraction of its composition.

  • What features make the sun a dwarf star?
    What features make the sun a dwarf star?
    Sun is a yellow dwarf star and classified in the dwarf star category. This is because it falls in the group where the stars have a temperature of 5300 K to 6000 K. these stars often fuse hydrogen into helium to generate the light and heat energy. Such stars often las for 10 billion years. This is the categorization, which is why sun is placed in the dwarf category. There are other stars that are much larger and have higher temperatures that are placed in different categories. Earth cannot stand the heat of such stars which is why they are thankfully far away from our solar system.

  • What happens when the chain reaction on the sun's surface ends?
    What happens when the chain reaction on the sun's surface ends?
    The sun is constantly giving off heat as a result of chain reactions happening on its surface. They occur due to spontaneous fusion and fission reactions. If these reactions stop, the sun will lose its energy source. It is speculated that if all the chain reactions stop, the hot ball of burning gas will go out and the light and heat we claim from it will vanish. However, the sun is expected to burn for millions of years as no one knows for sure how many resources are present. Until that time, every chain reaction acts as an initiator of another chain reaction, keeping the sun burning.

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