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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.
- Stars.TV
STARS TV – polski telewizyjny kanał muzyczny, prezentujący...
- Spectral Class
A simple chart for classifying the main star types using...
- Stellar evolution
Nuclear fusion powers a star for most of its existence....
- Stars
Stars – kanadyjska grupa muzyczna. STARS – polski kanał...
- Stars.TV
STARS TV – polski telewizyjny kanał muzyczny, prezentujący największe przeboje od lat 50. do piosenek współczesnych. W 2022 roku był trzecim najchętniej oglądanym kanałem muzycznym w Polsce.
A simple chart for classifying the main star types using Harvard classification. In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
Nuclear fusion powers a star for most of its existence. Initially the energy is generated by the fusion of hydrogen atoms at the core of the main-sequence star. Later, as the preponderance of atoms at the core becomes helium, stars like the Sun begin to fuse hydrogen along a spherical shell surrounding the core.
Stars – kanadyjska grupa muzyczna. STARS – polski kanał muzyczny. "Stars" – album Cher. "Stars" – album Simply Red. "Stars – The Best of 1992 – 2002" – album The Cranberries.
Types of Stars. The universe’s stars range in brightness, size, color, and behavior. Some types change into others very quickly, while others stay relatively unchanged over trillions of years.
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.
