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- Star - Wikipedia
A star is a luminous spheroid of plasma held together by self-gravity [1] The nearest star to Earth is the Sun Many other stars are visible to the naked eye at night; their immense distances from Earth make them appear as fixed points of light
- Star | Definition, Light, Names, Facts | Britannica
star, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources Of the tens of billions of trillions of stars composing the observable universe , only a very small percentage are visible to the naked eye
- Stars - NASA Science
Our Milky Way alone contains more than 100 billion, including our most well-studied star, the Sun Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements
- What Is a Star and How Does It Work? - ThoughtCo
How does a star do this "stellar nucleosynthesis" and not blow itself apart in the process? The answer: hydrostatic equilibrium That means gravity of the star's mass (which pulls the gases inward) is balanced by the outward pressure of the heat and light—the radiation pressure—created by the nuclear fusion taking place in the core
- What Is a Star? | Types of Stars - Sky Telescope
A star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity Nuclear fusion reactions in its core support the star against gravity and produce photons and heat, as well as small amounts of heavier elements
- Star Facts: The Basics of Star Names and Stellar Evolution
How are stars named? And what happens when they die? These star facts explain the science of the night sky
- What Is a Star? | Scientific American
In a very broad sense, a star is simply one of those twinkling points of light you can see in the night sky But that’s not terribly satisfying in either lexicological or physical terms
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