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We can't be sure. The only thing we know for sure is that it could be explained as

the speed with which that galaxy is receding from us. If that's actually the cause

of the red shift, then from all the red shifts that we observe, we have to conclude

that all of the distant galaxies are receding from us, and the farther away one is

already, the faster it's receding. If all of that is true, then the whole universe is

expanding. This is the research that made Hubble famous.

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What is red-shift and what does the size of the redshift tell us about the distant galaxies?

Red shift is the apparent elongation of the wavelength of light reaching us from distant sources of light due to the expansion of space in between. The amount of red shift can be used to work out the recessional velocity of a galaxy and it's distance from us.


What is an increase in the wavelength of light as a galaxy moves away from earth?

Red Shift


What does a red shift tell astronomers about stars or galaxies?

A red shift in the light emitted by a star or galaxy indicates that it is moving away from us. By measuring the amount of red shift, astronomers can determine the speed at which the object is receding and use this information to study the expansion of the universe and the distance to the object.


What does a blue shift in the spectrum indicate?

A blue shift in the spectrum indicates that an object is moving toward the observer, resulting in a decrease in the wavelength of the emitted light. This phenomenon is often observed in astronomy, where it can signify that a star or galaxy is approaching Earth. The shift towards the blue end of the spectrum occurs due to the Doppler effect, which affects the frequency of waves as the source moves relative to an observer.


Does the speed of light allow the Andromeda Galaxy to emit a blue shift?

There is some blueshift in the Andromeda galaxy as it is moving toward us. The speed of the Andromeda Galaxy relative to the sun is about 300 kilometers per second or about 0.1% the speed of light. The blueshift would be detectable by instruments but not to the human eye.

Related Questions

What is the shift in the light of a galaxy toward the red wavelength called?

This phenomenon is called red shift.


What is red-shift and what does the size of the redshift tell us about the distant galaxies?

Red shift is the apparent elongation of the wavelength of light reaching us from distant sources of light due to the expansion of space in between. The amount of red shift can be used to work out the recessional velocity of a galaxy and it's distance from us.


What is an increase in the wavelength of light as a galaxy moves away from earth?

Red Shift


Why is light from the Andromeda galaxy is affectedly blueshift?

because when the blue shift hits the red shift they complete a reround in the galxey


What property of the light of a far away galaxy has changed to allow it to have a blue shift?

it Will not be a star


What does a red shift tell astronomers about stars or galaxies?

A red shift in the light emitted by a star or galaxy indicates that it is moving away from us. By measuring the amount of red shift, astronomers can determine the speed at which the object is receding and use this information to study the expansion of the universe and the distance to the object.


Is the big bang theory supported by the blue violet shift?

Outside of our Local Group, no galaxy gives off light that exhibits a blue-shift. You most likely meant to say "red shift."


What does a blue shift in the spectrum indicate?

A blue shift in the spectrum indicates that an object is moving toward the observer, resulting in a decrease in the wavelength of the emitted light. This phenomenon is often observed in astronomy, where it can signify that a star or galaxy is approaching Earth. The shift towards the blue end of the spectrum occurs due to the Doppler effect, which affects the frequency of waves as the source moves relative to an observer.


Does the speed of light allow the Andromeda Galaxy to emit a blue shift?

There is some blueshift in the Andromeda galaxy as it is moving toward us. The speed of the Andromeda Galaxy relative to the sun is about 300 kilometers per second or about 0.1% the speed of light. The blueshift would be detectable by instruments but not to the human eye.


How does the amount on this system affect the amount of N2O4 formed?

The amount of reactants in a system directly affects the amount of products formed. In the case of the reaction forming N2O4, increasing the amount of reactants (NO2) will shift the equilibrium towards forming more N2O4. Conversely, decreasing the amount of reactants will shift the equilibrium towards forming more NO2.


The Andromeda galaxy show is a blue shift in its spectra What does this tell us about its motion relative to the earth and the rest of the soloar system?

The blue shift in the spectrum of the Andromeda galaxy indicates that it is moving towards the Earth and the rest of the solar system. This is because the light waves from the galaxy are compressed as it moves closer, causing the wavelength to shift towards the blue end of the spectrum.


Does the colour of a galaxy reflect its distance away from the earth?

No, however, we can determine whether a galaxy is moving towards or away from us, by looking at the shift in its spectrographic analysis. There are "red shifts" and "blue shifts" in spectrographic results. "Blue shifts" indicate that a galaxy is moving towards us, because the wavelength of the light emitted by the galaxy is compressed, causing it to shift to the blue end of the colour spectrum. "Red shifts" indicate that a galaxy is moving away from us, because the wavelength of the light emitted by the galaxy is being stretched towards the red end of the colour spectrum.