Flashcards - Characteristics of Stars

Flashcards - Characteristics of Stars
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watt
The watt is a derived unit of power in the International System of Units , named after the Scottish engineer James Watt
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absolute visual magnitude
Absolute magnitude is the measure of intrinsic brightness of a celestial object
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positron
The positron or antielectron is the antiparticle or the antimatter counterpart of the electron
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Doppler effect
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to its source
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luminosity
In astronomy, luminosity is the total amount of energy emitted by a star, galaxy, or other astronomical object per unit time
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photon
A photon is an elementary particle, the quantum of all forms of electromagnetic radiation including light
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photon
A photon is an elementary particle, the quantum of all forms of electromagnetic radiation including light
luminosity
In astronomy, luminosity is the total amount of energy emitted by a star, galaxy, or other astronomical object per unit time
Doppler effect
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to its source
positron
The positron or antielectron is the antiparticle or the antimatter counterpart of the electron
absolute visual magnitude
Absolute magnitude is the measure of intrinsic brightness of a celestial object
watt
The watt is a derived unit of power in the International System of Units , named after the Scottish engineer James Watt
blackbody
A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence
blueshift
A blueshift is any decrease in wavelength, with a corresponding increase in frequency, of an electromagnetic wave; the opposite effect is referred to as redshift
apparent brightness
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth
magnitude scale
The Richter magnitude scale assigns a magnitude number to quantify the size of an earthquake
spectrum
A spectrum is a condition that is not limited to a specific set of values but can vary infinitely within a continuum
continuous spectrum
In physics, a continuous spectrum usually means a set of attainable values for some physical quantity that is best described as an interval of real numbers

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