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23 gen 2013 · Anatomy of the Sun – from Mysteries of the Sun. Image of the Sun with cut-away portion showing the solar interior with text descriptions of the regions as follows (from inner-most to outer-most): The Sun’s Core – Energy is generated via thermonuclear reactions creating extreme temperatures deep within the Sun’s core.
- The Sun
The sun and its atmosphere consist of several zones or...
- The Sun
- How stars work
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- Do it at home
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- How astronomers study the Sun
In order to have a stable star, the energy it emits must be the same as it can produce. There must be an equilibrium. The main source of energy of a star it is nuclear fusion, especially the proton-proton chain, which can transform hydrogen into Helium. The energy generated in the core is transported outside by two main mechanisms: radiation and ...
The convection zone: The energy that is initially created in the core needs a new transport mechanism to carry on its passage to the Sun’s surface once it is out of the radiation zone. This is necessary since the temperature is relatively cool outside of the radiation zone (2 million degrees Kelvin compared to 5 million in the radiation zone). Atom...
You can build your own observatory for watching a solar eclipse at home in a safe way. You just need a cardboard box with a tiny hole in it, the Sun’s light will go through it and will project inside the box. For further information of how to build one you can visit: https://www.timeanddate.com/eclipse/box-pinhole-projector.html
The photosphere: The photosphere is also named the apparent surface of the Sun. Since the Sun is wholly made of gas, there is no solid surface (like there is on Earth). However, when we observe the Sun, there is a depth past which the density of the gas becomes so high that we cannot see through it. This region is called the photosphere, or as ment...
Astrophysicists study the Sun in very different ways, and they are complementary: they use ground-based and satellite telescopes. Every layer of the Sun is very different, and requires a distinct instrument, and as they study it in all the electromagnetic spectrum, scientists obtain as much information as possible from the Sun. Just as we previousl...
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22 gen 2020 · This is where the Sun generates its energy. The temperature in the core is around 15 million degrees Celsius. This, combined with the huge pressure and density of the plasma force hydrogen nuclei to fuse together, creating helium and releasing vast quantities of energy in the process.
Most of the elements found in the Sun are in the form of atoms, with a small number of molecules, all in the form of gases: the Sun is so hot that no matter can survive as a liquid or a solid. In fact, the Sun is so hot that many of the atoms in it are ionized, that is, stripped of one or more of their electrons.
2 feb 2024 · The sun is an ordinary star, one of about 100 billion in our galaxy, the Milky Way. The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis.
The Sun is the largest object in our solar system. Its diameter is about 865,000 miles (1.4 million kilometers). Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it.
