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Stellar classification and Sun

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Stellar classification and Sun

Stellar classification vs. Sun

In astronomy, stellar classification is the classification of stars based on their spectral characteristics. The Sun is the star at the center of the Solar System.

Similarities between Stellar classification and Sun

Stellar classification and Sun have 55 things in common (in Unionpedia): Annual Review of Astronomy and Astrophysics, Apparent magnitude, Astronomical spectroscopy, Astronomy, Asymptotic giant branch, Cambridge University Press, Carbon, Cecilia Payne-Gaposchkin, Chemical element, Degenerate matter, Effective temperature, Gravity, Helium, Hydrogen, Infrared, Ionization, Iron, Jupiter, Kelvin, Kelvin–Helmholtz mechanism, Luminosity, Magnesium, Main sequence, Manganese, Meghnad Saha, Metallicity, Methane, Milky Way, Molecular cloud, Nitrogen, ..., Nuclear fusion, Oxygen, Photosphere, Planetary nebula, Prism, Protostar, Red dwarf, Silicon, Sirius, Solar mass, Solar radius, Spectral line, Star, Stellar classification, Stellar evolution, Stellar population, Subgiant, Sun, Surface gravity, The Astrophysical Journal, Triple-alpha process, Ultraviolet, Vega, Visible spectrum, White dwarf. Expand index (25 more) »

Annual Review of Astronomy and Astrophysics

The Annual Review of Astronomy and Astrophysics is an annual peer reviewed scientific journal published by Annual Reviews.

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Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

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Astronomical spectroscopy

Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light and radio, which radiates from stars and other celestial objects.

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Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.

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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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Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

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Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.

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Cecilia Payne-Gaposchkin

Cecilia Helena Payne-Gaposchkin (May 10, 1900 – December 7, 1979) was a British–American astronomer and astrophysicist who, in 1925, proposed in her Ph.D. thesis an explanation for the composition of stars in terms of the relative abundances of hydrogen and helium.

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Chemical element

A chemical element is a species of atoms having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z).

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Degenerate matter

Degenerate matter is a highly dense state of matter in which particles must occupy high states of kinetic energy in order to satisfy the Pauli exclusion principle.

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Effective temperature

The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.

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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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Helium (from lit) is a chemical element with symbol He and atomic number 2.

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Hydrogen is a chemical element with symbol H and atomic number 1.

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Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.

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Ionization or ionisation, is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.

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Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.

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Jupiter is the fifth planet from the Sun and the largest in the Solar System.

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The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.

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Kelvin–Helmholtz mechanism

The Kelvin–Helmholtz mechanism is an astronomical process that occurs when the surface of a star or a planet cools.

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In astronomy, luminosity is the total amount of energy emitted per unit of time by a star, galaxy, or other astronomical object.

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Magnesium is a chemical element with symbol Mg and atomic number 12.

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Main sequence

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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Manganese is a chemical element with symbol Mn and atomic number 25.

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Meghnad Saha

Meghnad Saha FRS (6 October 1893 – 16 February 1956) was an Indian astrophysicist best known for his development of the Saha ionization equation, used to describe chemical and physical conditions in stars.

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In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.

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Methane is a chemical compound with the chemical formula (one atom of carbon and four atoms of hydrogen).

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Milky Way

The Milky Way is the galaxy that contains our Solar System.

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Molecular cloud

A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen (H2).

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Nitrogen is a chemical element with symbol N and atomic number 7.

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Nuclear fusion

In nuclear physics, nuclear fusion is a reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons or protons).

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Oxygen is a chemical element with symbol O and atomic number 8.

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The photosphere is a star's outer shell from which light is radiated.

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Planetary nebula

A planetary nebula, abbreviated as PN or plural PNe, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.

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In optics, a prism is a transparent optical element with flat, polished surfaces that refract light.

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A protostar is a very young star that is still gathering mass from its parent molecular cloud.

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Red dwarf

A red dwarf (or M dwarf) is a small and relatively cool star on the main sequence, of M spectral type.

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Silicon is a chemical element with symbol Si and atomic number 14.

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Sirius (a romanization of Greek Σείριος, Seirios,."glowing" or "scorching") is a star system and the brightest star in the Earth's night sky.

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Solar mass

The solar mass is a standard unit of mass in astronomy, equal to approximately.

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Solar radius

Solar radius is a unit of distance used to express the size of stars in astronomy.

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Spectral line

A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.

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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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Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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Stellar evolution

Stellar evolution is the process by which a star changes over the course of time.

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Stellar population

During 1944, Walter Baade categorized groups of stars within the Milky Way into bluer stars associated with the spiral arms and the general position of yellow stars near the central galactic bulge or within globular star clusters.

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A subgiant is a star that is brighter than a normal main-sequence star of the same spectral class, but not as bright as true giant stars.

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The Sun is the star at the center of the Solar System.

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Surface gravity

The surface gravity, g, of an astronomical or other object is the gravitational acceleration experienced at its surface.

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The Astrophysical Journal

The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.

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Triple-alpha process

The triple-alpha process is a set of nuclear fusion reactions by which three helium-4 nuclei (alpha particles) are transformed into carbon.

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Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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Vega, also designated Alpha Lyrae (α Lyrae, abbreviated Alpha Lyr or α Lyr), is the brightest star in the constellation of Lyra, the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus.

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Visible spectrum

The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.

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White dwarf

A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.

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The list above answers the following questions

Stellar classification and Sun Comparison

Stellar classification has 230 relations, while Sun has 548. As they have in common 55, the Jaccard index is 7.07% = 55 / (230 + 548).


This article shows the relationship between Stellar classification and Sun. To access each article from which the information was extracted, please visit:

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