28 relations: Asymptotic giant branch, B-type main-sequence star, Bipolar outflow, Collimated light, Corona, Cosmic dust, Cosmic ray, Cosmic wind, Earth, Electron, Electronvolt, G-type main-sequence star, Gravity, Main sequence, O-type star, Proton, Radiation pressure, Red giant, Red supergiant star, Solar wind, Star, Stellar atmosphere, Stellar classification, Stellar-wind bubble, Sun, Supernova, Temperature, White dwarf.
Asymptotic giant branch
The asymptotic giant branch (AGB) is a region of the Hertzsprung–Russell diagram populated by evolved cool luminous stars.
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B-type main-sequence star
A B-type main-sequence star (B V) is a main-sequence (hydrogen-burning) star of spectral type B and luminosity class V. These stars have from 2 to 16 times the mass of the Sun and surface temperatures between 10,000 and 30,000 K. B-type stars are extremely luminous and blue.
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A bipolar outflow comprises two continuous flows of gas from the poles of a star.
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Collimated light is light whose rays are parallel, and therefore will spread minimally as it propagates.
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A corona (Latin, 'crown') is an aura of plasma that surrounds the Sun and other stars.
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Cosmic dust, also called extraterrestrial dust or space dust, is dust which exists in outer space, as well as all over planet Earth.
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Cosmic rays are high-energy radiation, mainly originating outside the Solar System and even from distant galaxies.
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Cosmic wind is a powerful cosmic force that can push interstellar dust clouds of low density into intergalactic space.
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Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).
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G-type main-sequence star
A G-type main-sequence star (Spectral type: G-V), often (and imprecisely) called a yellow dwarf, or G dwarf star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.84 to 1.15 solar masses and surface temperature of between 5,300 and 6,000 K., G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp.
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Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
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In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
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An O-type star is a hot, blue-white star of spectral type O in the Yerkes classification system employed by astronomers.
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Radiation pressure is the pressure exerted upon any surface due to the exchange of momentum between the object and the electromagnetic field.
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A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.
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Red supergiant star
Red supergiants are stars with a supergiant luminosity class (Yerkes class I) of spectral type K or M. They are the largest stars in the universe in terms of volume, although they are not the most massive or luminous.
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The solar wind is a stream of charged particles released from the upper atmosphere of the Sun, called the corona.
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A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
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The stellar atmosphere is the outer region of the volume of a star, lying above the stellar core, radiation zone and convection zone.
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In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
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Stellar-wind bubble is a cavity light years across filled with hot gas blown into the interstellar medium by the high-velocity (several thousand km/s) stellar wind from a single massive star of type O or B. Weaker stellar winds also blow bubble structures, which are also called astrospheres.
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The Sun is the star at the center of the Solar System.
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A supernova (plural: supernovae or supernovas, abbreviations: SN and SNe) is a transient astronomical event that occurs during the last stellar evolutionary stages of a star's life, either a massive star or a white dwarf, whose destruction is marked by one final, titanic explosion.
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Temperature is a physical quantity expressing hot and cold.
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A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
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