TRIBUNLAMPUNG.CO.ID – Listen What is that star and star type.
Know the stars Quoted from the official website of the National Aeronautics and Space Administration (NASA), which launched from kompas.com.
Stars are the most widely recognized astronomical objects and represent the most basic building blocks and galaxies, in contrast to their own light-emitting moons.
Stars are spheres of luminous gas in which most of the star-forming elements are hydrogen and helium, which are held together by their own gravity.
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The temperature is so high at the core that nuclear fusion occurs, producing energy.
The external pressure of the gas heated by the fusion is offset by the inward gravitational pull, putting the star in hydrostatic equilibrium.
This balance of hydrostatic power lasts for most of the star’s life, maintaining a constant temperature.
Radiation and convection carry energy from the core out through the atmosphere of the star.
When the energy becomes high in the atmosphere so that the region above it is transparent, it exits into space as light of all wavelengths as well as stellar winds.
Although stars may appear stationary (static), they rotate and the level of luminosity (light) of stars varies.
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