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It doesn't. The Doppler shift can tell you how fast something is moving towards us or away from us; not how far it is. Only in the case of distant galaxies can this be used to estimate the galaxy's distance, because of the expansion of the Universe (galaxies that move away from us faster are generally farther away).
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What is the Doppler shift of galaxies?
It shows how galaxies are moving in relation to Earth.
What is the Doppler Shift as it applies to light?
That's more or less the same as the Doppler shift for other waves: a change of frequency, caused by relative movement between the source and the observer. When the distance is increasing the wavelength of the light increases. When the source of light and the observer are getting closer, the light's wavelength decreases. Red light has a longer wavelength than blue light.
How did the Doppler effect lead to the Big Bang theory?
Actually, it wasn't the Doppler-effect that lead to the Big Bang theory, but the red-shift of remote galaxies. Although it was initially thought that this red-shift might be caused by a Doppler-effect, it is now understood that this red-shift is caused by the metric expansion of space itself.
What phenomenon accounts for the blue shift of a star moving towards Earth?
The Doppler effect
What is the most commonly used method for discovering exoplanets?
Radial Velocity (AKA Doppler Shift)
Why is there no Doppler shift when a star is moving tangentially?
Because there is only a shift if the object's distance is changing.
The apparent shift in the spectrum of a star as it moves toward or away from the earth is explained by the phenomenon known as the?
Doppler effect. This effect causes the wavelengths of light from a star to appear shorter (blueshifted) as it moves towards the Earth and longer (redshifted) as it moves away, providing valuable information about the star's motion in space.
What is an explanation of the Doppler shift?
The Doppler Shift is a change in frequency due to the Doppler Effect.
Does the Doppler shift of a Stars proper motion and its distance give us its space velocity?
True
What is the change in frequency of a sound due to motion of the source?
The change in frequency is caused by the Doppler Effect
How can you use Doppler shift in a sentence?
Doppler shift is the change in frequency of a wave that seems to occur as it moves. Scientists study the doppler shift to see whether stars are moving away from or toward our galaxy.
What does analysis of colors tell astronomers about objects in space?
Doppler shift tells the distance form the earth station
How can astronomers determine whether a star is moving toward or a way from earth?
They can do so by examining the light from the star. Doppler shift can indicate this
What is the wavelength shift caused by local motions?
Doppler shift
What determines galaxy motion and distance?
One of the most reliable methods employed presently is using Hubbles Laws and Constant, utilizing the red shift. RED SHIFT A+LS (:
Who discovered the Doppler red shift?
The Doppler redshift was discovered by Hippolyte Fizeau in 1848.
Why would a passing race car display more Doppler effect than a passing police siren?
The amount of Doppler shift depends on speed - the faster vehicle will show more Doppler shift.
