The sun is made of several complex layers, each with its own unique job that ultimately produces energy. Layers of the Sun. The inner layers are the Core, Radiative Zone and Convection Zone. The Sun is the largest object in our solar system.It is composed of seven layers: three inner layers and four outer layers.The inner layers are the core, the radiative zone and the convection zone, while the outer layers are the photosphere, the chromosphere, the transition region and the corona. This layer is hotter than the surface of the sun. 1) Photosphere. The heat inside the core causes protons and electrons to rub together creating an energy source for the Sun. The layers of the Sun are divided into two larger groups, the outer and the inner layers. The core is comprised of a radiative layer that emits radiation and a convective layer that transfers heat. The Sun’s layers are different from each other, and each plays a part in producing the energy that the Sun ultimately emits. The Earth can fit around the sun 109 times. The temperature of the photosphere is about 10 million degrees Fahrenheit. There are four outer layers of the Sun, and the Corona is the outermost one. It is the closest star to the earth with a distance of 93 million miles. Layers of the Sun. IRIS will focus its investigation on the … The function of this layer is to transfer energy from the core to the other layers. The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse, or with the use of a coronagraph. Outer Layers. The temperature in the photosphere varies between about 6500 K at the bottom and 4000 K at the top (11,000 and 6700 degrees F, 6200 and 3700 degrees C). In reality, the diameter of the sun is around 860,000 miles. This layer is hotter than the surface of the sun. Corona - The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The photosphere is the layer that can be seen from the Earth. The corona does not have an upper limit. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona. It reaches from the surface visible at the center of the solar disk to about 250 miles (400 km) above that. The radiation zone is just outside the core. This is the outer layer of the sun and is the whitish halo seen around the disc in a total solar eclipse. Instead, this layer moves heat to the surface of the sun where it cools and drops back into the convection zone where it reheats. Kelvin is a temperature scale that picks up where the Celsius degree ends. Credit: National Solar Observatory, http://www.nasa.gov/mission_pages/iris/multimedia/layerzoo.html. It is the same diameter as the Earth and is about 35 million degrees Fahrenheit. Photosphere - layer of the sun that we can actually see The sun has many chemical elements but since it is so hot they are in a gaseous state. The centre of the Sun: about 15 million kelvin (K). The color of the sun is actually white, but from Earth, it appears yellow. The outermost layer is the corona and can be seen during a solar eclipse when the sun is blocked by the moon. 1) Core. This layer has 60 percent mass and 90 percent volume. How does the human muscular system function? The Sun is composed of several layers or regions. There are some regions in the Sun which can be seen from the Earth and those visible regions of the Sun are part of its atmosphere. 3) Transition Region. The temperature at this layer is cooler than the core at 7 million degrees Fahrenheit causing thermal radiation. The convection zone is not dense enough to transmit energy. The surface of this area can be seen through a telescope. For more information on the sun’s layers and temperatures visit the National Aeronautics and Space Administration. This graphic shows a model of the layers of the Sun, with approximate mileage ranges for each layer: for the inner layers, the mileage is from the sun's core; for the outer layers, the mileage is from the sun's surface. More detail on the outer layers follows: Photosphere - The photosphere is the deepest layer of the Sun that we can observe directly. Most of the photosphere is covered by granulation. Notify me of follow-up comments by email. The names of these layers, in order of their presence from the core of the sun are as follows: Inner Layers. Chromosphere can be seen during an Eclipse, National Aeronautics and Space Administration, Cloak of Invisibility is a Scientific Possibility.
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