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- The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
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1 day ago · The Sun is a G-type main-sequence star that makes up about 99.86% of the mass of the Solar System. It has an absolute magnitude of +4.83, estimated to be brighter than about 85% of the stars in the Milky Way, most of which are red dwarfs. The Sun is a Population I, or heavy-element-rich, star.
May 26, 2024 · The Sun is classified as a G2 V star, with G2 standing for the second hottest stars of the yellow G class—of surface temperature about 5,800 kelvins (K)—and the V representing a main sequence, or dwarf, star, the typical star for this temperature class.
May 20, 2024 · Based on its mass and the temperature at which it’s burning, the sun is also considered a yellow star. As for the teal: If you look at emissions from the sun at each different wavelength – called blackbody curve – the peak emission is teal.
5 days ago · A star is a luminous spheroid of plasma held together by self-gravity. 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.
May 23, 2024 · With regard to mass, size, and intrinsic brightness, the Sun is a typical star. Its approximate mass is 2 × 10 30 kg (about 330,000 Earth masses), its approximate radius 700,000 km (430,000 miles), and its approximate luminosity 4 × 10 33 ergs per second (or equivalently 4 × 10 23 kilowatts of power).
May 17, 2024 · The Sun is a class G star; these are yellow, with surface temperatures of 5,000–6,000 K. Class K stars are yellow to orange, at about 3,500–5,000 K, and M stars are red, at about 3,000 K, with titanium oxide prominent in their spectra.
4 days ago · The Sun, our star, is the luminous heart of the solar system, around which all planets revolve. It is a colossal sphere of hot plasma, fueled by nuclear fusion, that dominates the...
