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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 The most prominent stars have been categorised into constellations and asterisms, and many of the brightest stars have proper names Astronomers have
- Stars - NASA Science
Astronomers estimate that the universe could contain up to one septillion stars – that’s a one followed by 24 zeros 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 Every star has its own life cycle, ranging from a few million to
- 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 This article describes the properties and evolution of individual stars Included in the discussion are the sizes, energetics, temperatures, masses, and chemical compositions of stars
- What Is a Star? | Scientific American
What about stars, though? Do they also confound any sort of palatable definition? In a very broad sense, a star is simply one of those twinkling points of light you can see in the night sky But
- Star Facts - Interesting Facts about Stars
Stars are luminous spheres made of plasma – a superheated gas threaded with a magnetic field They are made mostly of hydrogen, which stars fuse
- What is a star? | Space
It's easy enough to say what a star is: one of those bright pointy things that twinkle in the night sky But the actual definition of a star is as rich and colorful as the stars themselves
- What Is a Star? | Types of Stars - Sky Telescope
Stars bring wonder to our night sky, but just what is a star, exactly? Find out how different types of stars produce light, heat, and heavy elements
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