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A blueshift in the galaxy's spectrum - that is, the frequency of the light, as observed by us, is greater than when it was emitted.
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∙ 9y ago
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How do you use spectral lines to determine if a galaxy is moving towards earth or away from earth?
The spectral lines move towards one direction, or towards the other direction, depending on the relative speed.
Galaxies that are moving away from Earth are .?
Most of them. except for Andromeda galaxy which is coming towards us - our Milky Way galaxy and they both will collide in 3-4 billion years(Repetition of ''Big Bang'')
Why do stars appear to move?
Some stars ARE moving towards us. The Andromeda Galaxy will collide with us in millions of years. The universe is expanding because of the "Big Bang", so almost everything is moving away from us.
How fast is the Earth moving through space?
The sun is moving through the galaxy at about a half a million miles per hour. Earth orbits the sun at about an eighth of that speed and the Milkyway Galaxy is moving at about a million miles per hour. Earths rotational speed is comparatively irrelevant. (about 1000 miles per hour) So earth is moving between .5 and 1.5 million miles per hour or .2% to .5% of the speed of light
Does the velocity of a star toward or away from earth determine measuring the shift of its spectral lines?
Yes. If the star is moving away from the Earth, its spectral lines will shift towards the red end of the spectrum. If it is moving towards the Earth, its spectral lines will shift towards the violet end of the spectrum. This is due to Doppler effect.
If a galaxy is moving towards the earth what direction does its spectrum move?
It will be blue shifted
Why is the Andromeda galaxy moving toward earth?
Sorry, Andromeda and earth are moving away from each other, not towards each other.
What would evidence of a galaxy moving toward Earth?
A blueshift in the galaxy's spectrum - that is, the frequency of the light, as observed by us, is greater than when it was emitted.
How do you use spectral lines to determine if a galaxy is moving towards earth or away from earth?
The spectral lines move towards one direction, or towards the other direction, depending on the relative speed.
Is it true that the farther away from Earth a galaxy is the slower it is moving?
incorrect. The farther away from earth a galaxy is, the faster it is moving.
Are any galaxies moving toward Earth?
The Andromeda galaxy is moving towards us (The Milky Way Galaxy) at about 432,000 kph. It's expected to start merging in around 3 -> 4 billion years time.
Which has a higher frequency a star moving away from earth or towards earth?
I would think that current evidence suggests that the stars moving away from earth, some of them in far distant galaxies moving at unimaginably high speeds, are going much faster than stars moving toward us. The entire Andromeda galaxy is moving toward us and will collide with us in roughly 5 billion years, and it is not moving anywhere near as fast as the distant retreating galaxies.
Does the colour of a galaxy reflect its distance away from the earth?
No, however, we can determine whether a galaxy is moving towards or away from us, by looking at the shift in its spectrographic analysis. There are "red shifts" and "blue shifts" in spectrographic results. "Blue shifts" indicate that a galaxy is moving towards us, because the wavelength of the light emitted by the galaxy is compressed, causing it to shift to the blue end of the colour spectrum. "Red shifts" indicate that a galaxy is moving away from us, because the wavelength of the light emitted by the galaxy is being stretched towards the red end of the colour spectrum.
What Evidence shows galaxies are moving in relation to the earth position?
Look at the spectrum of lite from a galaxy if there is a red shift the galaxy is moving away from us or a blue shift the galaxy is coming toward us most have a red shift due to expansion of the universe we are all flying away from another
Galaxies that are moving away from Earth are .?
Most of them. except for Andromeda galaxy which is coming towards us - our Milky Way galaxy and they both will collide in 3-4 billion years(Repetition of ''Big Bang'')
How fast is your Milky Way galaxy moving around the local group of galaxies?
300 km/s Edit: I've seen that estimate, but it's not straightforward. It's not like finding how fast the Earth orbits the Sun, for example. For one thing the largest galaxy, called Andromeda, is moving towards Earth.
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.
