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Its part of science!

Edit : In astronomy, the Doppler effect is the change in wavelength of light caused by movement of a light source such as a star or a whole galaxy.

The term "red shift" refers to the increase in the light's wavelength from the

blue to the red end of the spectrum. This happens when a light source is

moving away from us.

I don't want to over complicate things, but there is a similar thing

called the "cosmological red shift ", but that's caused by the expansion

of space itself.

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Who discovered the Doppler red shift?

Christian Doppler, an Austrian physicist, is credited with discovering the phenomenon of the Doppler red shift in 1842. He observed that the pitch of sound waves from a moving object changes depending on the object's motion relative to the observer. His theory was later extended to light waves to explain the red shift observed in the spectra of distant galaxies.


How are Doppler blue and red shift different?

A blue shift is observed in the spectrum from an object approaching the observer whereas a red shift is observed for a receding object.


Where is Betelgeuse on Doppler Shift?

Betelgeuse is a red supergiant star located in the Orion constellation. Its light exhibits a small Doppler shift due to its motion relative to Earth, but this shift is not significant compared to its overall distance and size. The Doppler shift of Betelgeuse's light is mainly influenced by its own pulsations and variations in brightness.


A red Doppler shift indicates that a star is moving .?

A red Doppler shift indicates that a star is moving away from the observer. This phenomenon occurs because the wavelengths of light emitted by the star are stretched as it recedes, making them appear redder. In contrast, a blue Doppler shift would indicate that the star is moving toward the observer. This shift is a critical tool in astrophysics for determining the motion of celestial objects.


Can a red shift and a blue shift exist on the same object at the same time?

No, red shift and blue shift are opposite phenomena caused by the Doppler effect. Red shift occurs when an object is moving away from the observer, while blue shift occurs when an object is moving towards the observer. It is not possible for an object to exhibit both red shift and blue shift simultaneously.

Related Questions

What effect is red shift an example of?

The Doppler effect.


Who discovered the Doppler red shift?

Christian Doppler, an Austrian physicist, is credited with discovering the phenomenon of the Doppler red shift in 1842. He observed that the pitch of sound waves from a moving object changes depending on the object's motion relative to the observer. His theory was later extended to light waves to explain the red shift observed in the spectra of distant galaxies.


What is a Doppler red shift and a Doppler blue shift?

A Doppler red-shift is a shift in recognizable features of a star's spectrum from the wavelengths where we know they belong toward longer wavelengths. Such a shift can be caused by the star's moving away from us, and that's how it's interpreted when astronomers see it. A Doppler blue-shift is a shift in recognizable features of a star's spectrum from the wavelengths where we know they belong toward shorter wavelengths. Such a shift can be caused by the star's moving toward us, and that's how it's interpreted when astronomers see it.


How are Doppler blue and red shift different?

A blue shift is observed in the spectrum from an object approaching the observer whereas a red shift is observed for a receding object.


What is it called when galaxies move away and the light waves become longer?

That is called a red shift or a Doppler shift.


Where is Betelgeuse on Doppler Shift?

Betelgeuse is a red supergiant star located in the Orion constellation. Its light exhibits a small Doppler shift due to its motion relative to Earth, but this shift is not significant compared to its overall distance and size. The Doppler shift of Betelgeuse's light is mainly influenced by its own pulsations and variations in brightness.


What is the opposite of the red shift?

The opposite of the red shift is the purple shift.


A red Doppler shift indicates that a star is moving .?

A red Doppler shift indicates that a star is moving away from the observer. This phenomenon occurs because the wavelengths of light emitted by the star are stretched as it recedes, making them appear redder. In contrast, a blue Doppler shift would indicate that the star is moving toward the observer. This shift is a critical tool in astrophysics for determining the motion of celestial objects.


What is an explanation of the Doppler shift?

The Doppler shift is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the source of the wave. When the observer is moving towards the source, the frequency appears higher (blue shift), and when moving away, the frequency appears lower (red shift). This effect is commonly observed in everyday situations, such as the change in pitch of a siren as a police car passes by.


What does the amount of red Doppler shift indicate?

It indicates how fast an object is moving away from us.


Explain why some stars in the milky way galaxy have a blue shift Doppler effect and other stars in the milky way have a red shift Doppler?

A blue-shift means an object is moving towards us, a red-shift means it is moving away from us. Blue-shift and red-shift are changes in frequency of the light we receive, due to the relative movement. This is called the Doppler effect.


Can a red shift and a blue shift exist on the same object at the same time?

No, red shift and blue shift are opposite phenomena caused by the Doppler effect. Red shift occurs when an object is moving away from the observer, while blue shift occurs when an object is moving towards the observer. It is not possible for an object to exhibit both red shift and blue shift simultaneously.