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What does the red shift of the galaxies tell us about their motion with respect to the Earth?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 11y ago
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What is the difference between the cosmological and Doppler red shift?
Red shift is the change in the spectra of galaxies towards being more red than we would expect them to be. Doppler Shift results from galaxies being in motion away from us. Thus, the large Andromeda Galaxy has a blue shift, because it and our Milky Way Galaxy are being pulled towards each other due to gravity. Cosmological Shift results from the space between us and other galaxies growing larger over time, even though neither they nor our Milky Way Galaxy are in motion relative to one another.
What is the red shift of hydrogen?
The red shift depends on the relative motion of the emitting source and receiving detector. Hydrogen per se has no red shift. There is hydrogen with great red shift (in stars in galaxies far away that are moving rapidly away from us).
What is the relationship between red-shift and distant galaxies?
red shift is a distance and galaxies are planets. galaxies are also chocolate bars and red shift is not. thanks for your time. now go use your own knowledge and stop using google you gimps.
What does red shift tell us about other galaxies?
It tells us that most galaxies are moving away from us.
What is the significance of red shift galaxies?
It means they are moving away from us.
What is the Doppler shift of galaxies?
It shows how galaxies are moving in relation to Earth.
Do galaxies shift near or far away from earth?
Most galaxies have a red shift away from us - meaning they are moving away from us. However, the Andromeda galaxy has a blue shift, which means it is moving towards us. In about 2.5 billion years time, the two galaxies will merge.
When you are in bed asleepare you in motion?
Usually not - with respect to the bed at least. But you do periodically shift position.
When you are in bed asleepare you motion?
Usually not - with respect to the bed at least. But you do periodically shift position.
The spectral lines from distant galaxies do not match spectral lines on Earth due to?
wavelength shift
What is the difference between the cosmological and Doppler red shift?
Red shift is the change in the spectra of galaxies towards being more red than we would expect them to be. Doppler Shift results from galaxies being in motion away from us. Thus, the large Andromeda Galaxy has a blue shift, because it and our Milky Way Galaxy are being pulled towards each other due to gravity. Cosmological Shift results from the space between us and other galaxies growing larger over time, even though neither they nor our Milky Way Galaxy are in motion relative to one another.
What is the red shift of hydrogen?
The red shift depends on the relative motion of the emitting source and receiving detector. Hydrogen per se has no red shift. There is hydrogen with great red shift (in stars in galaxies far away that are moving rapidly away from us).
What is the relationship between red-shift and distant galaxies?
red shift is a distance and galaxies are planets. galaxies are also chocolate bars and red shift is not. thanks for your time. now go use your own knowledge and stop using google you gimps.
Why do stars shift westward?
Stars appear to shift westward because of the Earth's daily rotation. Also, there is a slower westward movement because of the annual motion of the Earth around the Sun.
When viewed from earth the light from very distant galaxies shows a red shift evidence that these distant galaxies moving towards or away from earth?
The "redshift" refers to the fact that the light is less energetic than when it was emitted; it shows that the galaxies move away from us. Should a galaxy move towards us - which is possible only for galaxies that are relatively close to us - then there would be a blueshift.
What is happening to Galaxies during red shift?
The commonly accepted explanation is that they move away from us. The redshift in this case is caused by the Doppler effect. Answer2 During red shift, the Galaxies are in continuity, experiencing a centrifugal force that balances a center seeking centripetal force. The red shift is not an indicator of the galaxies moving away from us. The red shift is mis-understood. Edwin Hubble believed that the red shift is a "hitherto unrecognized principle of nature". The red shift is a centripetal force factor, similar to the Fine Structure constant, associated with the Potential Energy. The Earth has a red shift = v/c= .0001 indicating that the earth is attracted to the orbit center. The angle off attraction is cos A= .0001 gives the angle 89 degrees 59 ' 39". This angle is the angle between the radius and te earth's velocity vector. The red shift is derived from the "Dark Energy" of the earth, mcV. Red shift is the cosine of the centrifugal force derived from the Divergence of the vector energy (Dark Energy), - mcDEl.V= - mcv/r cosV. More could be said, but the galaxies are in continuity balance during red shift.
How would other galaxies appear to move relative to Earth if the universe were shrinking?
If the Universe was shrinking the galaxies would appear to be moving towards the Earth, and look more blue than they should. This is the opposite to the universe expanding where galaxies would appear to be moving away from the Earth, which we know due to "red shift". Andromeda would be the exception since it's directly moving towards the Milky Way.
