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What does a red shift tell astronomers about the movement of an object?
Wiki User
∙ 7y ago
"Redshift", which means that the frequency of the light as seen by us is LESS than the frequency at which it was emitted, tells us that an object is moving away from us.
Wiki User
∙ 7y ago
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What does analysis of colors tell astronomers about objects in space?
Doppler shift tells the distance form the earth station
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.
How can an object's red shift tell us how fast the object is moving away from earth?
The amount of reddening is directly proportional to the speed of the object away from the observer (if the object is moving tangentially, even at a high speed, no red shift will be noticeable. Follow the link below for a bit more information on the mathematics and measurements of red shifts.
What is it important for astronomers to study the sun?
SSo the astronomers can tell us what is happening to the sun. that good enough? :)
What does the red shift of the galaxies tell us about their motion with respect to the Earth?
Less than you'd think. At extreme distances, the red-shift is caused by metric expansion more than by motion. So to be able to gauge the speed of an object relative to you, you'd first have to determine the pseudo-speed caused by metric expansion.
How can astronomers tell what a distant object's velocity?
By using the habo space telescle to detect the object's velocity
How can astronomers tell what a distant object's temperature is?
blah blah black sheep
What does analysis of colors tell astronomers about objects in space?
Doppler shift tells the distance form the earth station
Can astronomers tell what a distant object is made of?
spectrocity...absorption of select frequency of light ie spectrocity
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.
How can an object's red shift tell us how fast the object is moving away from earth?
The amount of reddening is directly proportional to the speed of the object away from the observer (if the object is moving tangentially, even at a high speed, no red shift will be noticeable. Follow the link below for a bit more information on the mathematics and measurements of red shifts.
Does the absorption spectra tell astronomers if a star is moving towards the earth?
Yes, or at least it is used in determining that. However, it is only part of a much larger calculation in determining if it has a red or blue shift
What does the wavelength of light tell us about an objects movement?
Assuming the object's moving rapidly enough to affect the light from it observedly: If approaching the light will be biased to blue (higher-f, lower wavelength); If receding, the light will be redder (red-shift), or lower-f, longer wavelength) by Doppler effect. If the true spectrum can be determined then the shift either way can be used to calculate the object's speed relative to the observer (not necessarily its true speed!).
What is it important for astronomers to study the sun?
SSo the astronomers can tell us what is happening to the sun. that good enough? :)
What does the average kinetic energy of an object's particle tell you?
This is the same thing as temperature. Remember, heat is just the movement of particles.
How does a dolphin communicate through movement?
A dolphin uses echolocation to find what it needs to. It bounces off an object to tell what it is.
How can astronomers tell what a distant object is made of?
Astronomers are able to identify chemicals in distant space with the use of spectral analysis. This breaks the light apart into a spectrum and find either emission lines or absorption lines and identifies which elements are present.
