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Mercury-manganese star

Index Mercury-manganese star

A mercury-manganese star is a type of chemically peculiar star with a prominent spectral line at 398.4 nm, due to absorption from ionized mercury. [1]

27 relations: Absorption spectroscopy, Apparent magnitude, Atmosphere, Atom, Bayer designation, Chemically peculiar star, Flamsteed designation, Gallium, Gravity, HD 30963, Iota Coronae Borealis, Magnetic field, Maia (star), Manganese, Mercury (element), Nanometre, Phi Herculis, Phosphorus, Pi Boötis, Platinum, Radiation pressure, SIMBAD, Star, Stellar classification, Strontium, Yttrium, Zirconium.

Absorption spectroscopy

Absorption spectroscopy refers to spectroscopic techniques that measure the absorption of radiation, as a function of frequency or wavelength, due to its interaction with a sample.

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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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Atmosphere

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body.

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Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.

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Bayer designation

A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.

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Chemically peculiar star

In astrophysics, chemically peculiar stars (CP stars) are stars with distinctly unusual metal abundances, at least in their surface layers.

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Flamsteed designation

A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.

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Gallium

Gallium is a chemical element with symbol Ga and atomic number 31.

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Gravity

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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HD 30963

HD 30963 is a star in the constellation of Eridanus.

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Iota Coronae Borealis

Iota Coronae Borealis, Latinized from ι Coronae Borealis, is a binary star system in the constellation Corona Borealis.

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Magnetic field

A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.

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Maia (star)

Maia, designated 20 Tauri (abbreviated 20 Tau), is a star in the constellation of Taurus.

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Manganese

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

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Mercury (element)

Mercury is a chemical element with symbol Hg and atomic number 80.

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Nanometre

The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).

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Phi Herculis

Phi Herculis (φ Her) is a binary star system in the northern constellation of Hercules.

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Phosphorus

Phosphorus is a chemical element with symbol P and atomic number 15.

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Pi Boötis

Pi Boötis, Latinized from π Boötis, is a probable triple star system in the northern constellation of Boötes.

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Platinum

Platinum is a chemical element with symbol Pt and atomic number 78.

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Radiation pressure

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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SIMBAD

SIMBAD (the Set of Identifications, Measurements, and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.

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Star

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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Strontium

Strontium is the chemical element with symbol Sr and atomic number 38.

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Yttrium

Yttrium is a chemical element with symbol Y and atomic number 39.

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Zirconium

Zirconium is a chemical element with symbol Zr and atomic number 40.

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Redirects here:

Hg-Mn star, Hg-Mn stars, HgMn star, HgMn stars, Mercury-Manganese star, Mercury-Manganese stars, Mercury-manganese stars, Mn-Hg star, Mn-Hg stars, MnHg star, MnHg stars.

References

[1] https://en.wikipedia.org/wiki/Mercury-manganese_star

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