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At least one galaxy is moving towards us: the M31 Andromeda galaxy. Most galaxies however are so far away from us that the distances between are affected by the metric expansion of the universe. They may move towards us relative to their local metric, but the distance between us and them still increases.
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∙ 11y ago
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How does the Doppler shift determine the distance of Sirius?
It doesn't. The Doppler shift can tell you how fast something is moving towards us or away from us; not how far it is. Only in the case of distant galaxies can this be used to estimate the galaxy's distance, because of the expansion of the Universe (galaxies that move away from us faster are generally farther away).
Is it true that the further galaxies are away from us the faster they move?
The further a galaxy is away from us the faster it's moving away from us.
In which direction are mostly all galaxies moving?
Actually, most galaxies are all moving away from all other galaxies, not just from ours. The exception is the Andromeda galaxy, with which the Milky Way is on a collision course.
Do galaxies moves away from the sun by red shift?
Galaxies that are moving away from the sun are red shifted, that is the light from them looks more red to us that it is when it is emitted. This is due to the speed of the galaxy moving away from which in effect stretches out the wavelengths of the light. Red shift is not the method by which galaxies move away from the sun, rather, it is a consequence of it.
Why are some stars in the middle of galaxies and are on the outside?
Generally older stars are towards the middle of a galaxy whereas younger stars are towards the edge.
What Doppler shift do galaxies show?
Some nearby galaxies move towards us (blueshift), some move away from us (redshift). Galaxies that are farther away all move away from us (redshift); this means that the Universe is expanding.
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 best describes how galaxies generally move 1 toward each other 2 away from one another 3 randomly 4 galaxies do not move?
The general tendency is for galaxies to move away from each other, in other words, the Universe is expanding. Only in our "immediate neighborhood" will you also find some galaxies that move towards us.
What type of galaxy moves away from Earth?
That has nothing to do with the "type"; it is how far they are away from Earth. Due to the general expansion of the Universe, galaxies that are far way from us systematically move away from us - the farther away, the faster. It is only nearby galaxies which may happen to move towards us.
What did astronomers Edwin Hubble discover that led to the formulation of his law?
Basically, his discovery was that most galaxies move away from us; and that the galaxies that are farther away, also tend to move away faster.
Are different galaxies moving in your universe if so in which direction?
Most galaxies move away from us - the farther they are from us, the faster they move away from us. This means that the Universe is expanding.
How do the distant galaxies ussually move?
Away from us.
What directions do galaxies move?
Most move away from us, and each other.
How does redshift support the notion of the expanding universe?
The redshift of distant galaxies is believed to be a result of the Doppler effect - in other words, the light is shifted towards lower frequencies ("redshifted") due to the fact that the galaxies move away from us.
How can you tell that some galaxies are far away and moving rapidly towards us?
You can tell by the blueshift in the spectrum; the only reasonable explanation for this blueshift is the Doppler effect. - Please note that most galaxies are moving away from us, not towards us.
What imporatant observation did Edwin Hubble make about the movement of galaxys'?
That most galaxies move away from us; and that the general tendency is that galaxies that are farther away move away from us faster.
Are galaxies stationary or randomly moving?
The move around. For example: M31 is moving towards us, and is expected to collide with our galaxy, the Milky Way, in 3 or 4 billion years.
