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23 relations: Astronomical spectroscopy, Astronomy, Atomic physics, Chemical element, Cyan, Dichroic filter, Eagle Nebula, Forbidden mechanism, Green, H II region, Ion, Ira Sprague Bowen, Light pollution, Nebula, Nebulium, Oxygen, Planetary nebula, Spectral color, Spectral line, Spectroscopic notation, Turquoise (color), Ultraviolet, Visible spectrum.
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
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
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Atomic physics
Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus.
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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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Cyan
Cyan is a greenish-blue color.
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Dichroic filter
A dichroic filter, thin-film filter, or interference filter is a very accurate color filter used to selectively pass light of a small range of colors while reflecting other colors.
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Eagle Nebula
The Eagle Nebula (catalogued as Messier 16 or M16, and as NGC 6611, and also known as the Star Queen Nebula and The Spire) is a young open cluster of stars in the constellation Serpens, discovered by Jean-Philippe de Chéseaux in 1745–46.
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Forbidden mechanism
In spectroscopy, a forbidden mechanism (forbidden transition or forbidden line) is a spectral line associated with absorption or emission of light by atomic nuclei, atoms, or molecules which undergo a transition that is not allowed by a particular selection rule but is allowed if the approximation associated with that rule is not made.
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Green
Green is the color between blue and yellow on the visible spectrum.
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H II region
An H II region or HII region is a region of interstellar atomic hydrogen that is ionized.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Ira Sprague Bowen
Ira Sprague Bowen (December 21, 1898 – February 6, 1973) was an American physicist and astronomer.
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Light pollution
Light pollution, also known as photopollution, is the presence of anthropogenic light in the night environment.
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Nebula
A nebula (Latin for "cloud" or "fog"; pl. nebulae, nebulæ, or nebulas) is an interstellar cloud of dust, hydrogen, helium and other ionized gases.
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Nebulium
Nebulium was a proposed element found in astronomical observation of a nebula by William Huggins in 1864.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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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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Spectral color
A spectral color is a color that is evoked in a normal human by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light.
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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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Spectroscopic notation
Spectroscopic notation provides a way to specify atomic ionization states, as well as atomic and molecular orbitals.
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Turquoise (color)
Turquoise is the name of a blue color, based on the gem of the same name.
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Ultraviolet
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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Visible spectrum
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.
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References
[1] https://en.wikipedia.org/wiki/Doubly_ionized_oxygen
