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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 red shift tell astronomers about the movement of an object?

A red shift indicates that an object is moving away from the observer. This is a result of the Doppler effect, where light waves are stretched as an object moves away, causing them to shift towards the red end of the spectrum. Astronomers can use red shifts to determine the speed and direction of an object's movement.


The red shift of visible light waves that is observed by astronomers on earth is used to determine the?

The red shift of visible light waves is used by astronomers to determine the speed and direction of celestial objects moving away from Earth. This phenomenon is a key indicator of the expansion of the universe and helps scientists understand the distance and movement of galaxies and other cosmic bodies.


What is important about Hubble discovery that there is a red shift in the spectra of galaxies?

that the universe is expanding(: YouR WelomE


What conclusion do astronomers make based on the red shift?

Astronomers conclude that objects in the universe are moving away from Earth due to the observed redshift in their spectra. This supports the idea of an expanding universe, as described by the Big Bang theory. The amount of redshift is proportional to the distance of the object, allowing astronomers to estimate the speed at which galaxies are moving away from us.

Related Questions

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 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.


What does a red shift tell astronomers about the movement of an object?

A red shift indicates that an object is moving away from the observer. This is a result of the Doppler effect, where light waves are stretched as an object moves away, causing them to shift towards the red end of the spectrum. Astronomers can use red shifts to determine the speed and direction of an object's movement.


The red shift of visible light waves that is observed by astronomers on earth is used to determine the?

The red shift of visible light waves is used by astronomers to determine the speed and direction of celestial objects moving away from Earth. This phenomenon is a key indicator of the expansion of the universe and helps scientists understand the distance and movement of galaxies and other cosmic bodies.


red shift?

red shift


What is important about Hubble discovery that there is a red shift in the spectra of galaxies?

that the universe is expanding(: YouR WelomE


How do astronomers use parallax to describe how we measure the distance to other stars?

Astronomers use parallax to measure the distance to other stars by observing how a star appears to shift its position against the background of more distant stars as the Earth orbits the Sun. By measuring this apparent shift, astronomers can calculate the distance to the star based on the angle of the shift and the known distance between the Earth and the Sun.


What conclusion do astronomers make based on the red shift?

Astronomers conclude that objects in the universe are moving away from Earth due to the observed redshift in their spectra. This supports the idea of an expanding universe, as described by the Big Bang theory. The amount of redshift is proportional to the distance of the object, allowing astronomers to estimate the speed at which galaxies are moving away from us.


When was The Red Shift created?

The Red Shift was created in 2005-06.


What do astronomers use measure to distances to nearby stars?

Two units that are commonly used are:* Parsecs (among professional astronomers) * Light-years (in popular astronomy) A light-year is about 9.5 million million kilometers. A parsec is about 3.26 light-years.


What is the opposite of the red shift?

The opposite of the red shift is the purple shift.


What is important about the Hubble telescope's discovery that there is a red shift in the spectra of galaxies?

The Hubble telescope did not discover that there is a red shift in the spectra of Galaxies. The telescope is named after the American astronomer, Edwin Hubble, who discovered the phenomenon in the 1920s.