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Red shift works when galaxies or other bodies are moving father away. the light is stretched, ie it becomes redder. Blue shift is opposite.
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Do galaxies moves away from the sun by red shift?
Galaxies that are moving away from the sun are red shifted, that is the light from them looks more red to us that it is when it is emitted. This is due to the speed of the galaxy moving away from which in effect stretches out the wavelengths of the light. Red shift is not the method by which galaxies move away from the sun, rather, it is a consequence of it.
What happen to the spectrum of a star moving toward the earth away from the earth?
If a star is moving towards Earth. The light is seen as 'blue shifted'. As we look at our sun, on the colour spectrum, black lines appear. When looking at distant stars, we can tell if they are moving away from us (Red shift) or getting closer to us (Blue shift). This is because the black lines shift to the red or blue end of the spectrum depending on which direction the star is travelling.
How do we know sun rotates?
We know the Sun rotates because we can watch sunspots on the face of the Sun.
The discovery that the universe appears to be expanding led to a widely accepted theory called?
Edwin Hubble was one of the scientists who realized that the red-shifted light from far-away galaxies indicated that the universe is expanding.
The more spectral lines of a star are shifted to the red end of the spectrum the?
... faster it moves away from us.
What term describes the wavelengths of light from a star that appear to be longer than they actually are?
red shifted
The fact that the light from distant galaxies is red-shifted suggests that the galaxies are?
Moving away from us
Would a light source moving away from Earth appear blue shifted or red shifted?
A red shift indicates an object that is moving away from the observer, and a blue shift indicates an object that is moving toward the observer. Both of these are called Doppler shifts.
When a source of light approaches an observer the light appears to be than it actually is?
Blue shifted and when it is moving away it is under a red shift.
What did Hubble conclude when he noted that light emitted from stars is shifting toward the red of the electromagnetic spectrum?
He noted that light emitted from stars is shifted further toward the red of the electromagnetic spectrum . From this he concluded that the universe was expanding.
How does a red shift from a blue shift?
A red shift shows us that a object is moving away, while a blue shift shows us an object is moving toward us. Light that has been 'red shifted' has a longer wavelength when it reaches our eyes/telescopes/etc. than it had when it left the object. Light that has been 'blue shifted' now has a shorter wavelength. The reason stretching the wavelength is known as 'red shifting' is that, in the visible spectrum, red light has the longest wavelength. Blue light has a much shorter wavelength than red so when the wavelength is compressed, we call it blue shifting.
What common principle do red and blue shifts share?
Both the Red and Blue shifts are qualities of the doppler effect. Using the example of a speed of light (SOL) traveler speeding along at 186,000 miles in one second, to or from Earth, the SOL traveler would be perceived by an individual on Earth as being in motion via a shift in light's radiated wavelength toward the blue of red spectrum respectively. Another way of thinking about this is that the wavelength of light, to or from Earth, would be compressed (blue shifted) or dilated (red shifted). Alternatively the SOL traveler should observe an individual on Earth as being at rest (blue or red shifted) relative to their own SOL motion to or from Earth.
What color are distant galaxy's?
They are red shifted.
If light experiences the Doppler effect what will happen to its color?
If light is subject to the Doppler effect, it will change color. The light changes color toward the lower (red) end of the spectrum or the upper (blue) end of the spectrum. Which way the color shifts depends on whether the distance between the source and the observer is increasing or decreasing. Should we find the distance is increasing, the light will be shifted toward the red end of the spectrum. This is called redshift (one word), and astronomers know this well because most all galaxies are speeding away from the Milky Way and have their light shifted toward the red end of the spectrum. If the distance between a source and observer is decreasing, the color of the light will be shifted toward the blue end of the spectrum. In either case, the amount the color is shifted will be determined by the rate the distance between the source and observer is changing. If a galaxy is moving away from the Milky Way, we'll see a shift toward red, and if another galaxy is moving away faster, will see a greater shift in the color of the light from it.
When a star or galaxy moves quickly away from an observerthe light it emits?
Red. It's called Redshift When it moves quickly away it's called Blueshift
Is the frequency of morning light or evening light shifted higher or lower?
Sunlight near the horizon (sunrise or sunset) tends to be shifter slightly red (lower) than when the sun is high in the sky.
Why is the light blue shifted in the Andromeda galaxy?
The light from Andromeda is blue shifted because that galaxy is approaching ours. We will eventually collide, as we have probably done in the past.
