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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 A star’s gas provides its fuel, and its mass determines how rapidly it runs through its supply, with lower-mass stars burning longer, dimmer, and cooler than very massive stars More massive stars must burn fuel at a higher rate to generate the energy that keeps them from collapsing under their own weight
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
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
Stars—facts and information | National Geographic Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores Aside from our sun, the dots of light we see in
Life Cycle of a Star: Stages, Facts, and Diagrams Life Cycle of a Star What is a Star? A star is a giant sphere of extremely hot, luminous gas (mostly hydrogen and helium) held together by gravity A few examples of well-known stars are Pollux, Sirius, Vega, Polaris, and our own Sun Stars are essentially the building blocks of galaxies and are the source of all the heavier elements