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If a galaxy is moving towards the earth what direction does its spectrum move?
Wiki User
∙ 14y ago
It will be blue shifted
Wiki User
∙ 14y ago
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When the absorption lines of a galaxy shifts toward the blue end of the spectrum it means that that the galaxy?
It means the heading towards us, red means it is moving away from us.
How do astronomers determine the speed at which a galaxy is moving?
By examining its spectrum, and identifying absorption lines in it. Lines are shifted toward shorter wavelength if the object is moving towards us. They're shifted toward longer wavelength if the object is moving away from us.
What is the direction of acceleration when moving in a circle?
The direction of the acceleration is towards the center. The magnitude of the acceleration is v2/r.
Why is the Andromeda galaxy moving toward earth?
Sorry, Andromeda and earth are moving away from each other, not towards each other.
What happen to the spectrum of a star moving toward the earth away from the earth?
If a star is moving towards Earth. The light is seen as 'blue shifted'. As we look at our sun, on the colour spectrum, black lines appear. When looking at distant stars, we can tell if they are moving away from us (Red shift) or getting closer to us (Blue shift). This is because the black lines shift to the red or blue end of the spectrum depending on which direction the star is travelling.
What would be evidence of a galaxy moving towards 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.
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.
When the absorption lines of a galaxy shifts toward the blue end of the spectrum it means that that the galaxy?
It means the heading towards us, red means it is moving away from us.
When the absorption line of a galaxy shift toward the blue end of the spectrum it means that the galaxy is?
It means the heading towards us, red means it is moving away from us.
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.
How does imaging determine how fast a distant galaxy is moving away from Earth.?
The star's spectrum is analyzed; certain lines in the spectrum, which have a fixed position, will change their position when the object moves away from us or towards us.
What direction are observed galaxies moving from your galaxy?
Away.
What shift is a galaxy moving towards us?
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How do astronomers determine the speed at which a galaxy is moving?
By examining its spectrum, and identifying absorption lines in it. Lines are shifted toward shorter wavelength if the object is moving towards us. They're shifted toward longer wavelength if the object is moving away from us.
How is wavelength of the light waves received is affected by the movemenet of a galaxy?
The wavelengths of light waves would go through either a blue shift or a redshift depending on whether the galaxy is moving toward the receiver or away. A redshift occurs when the light source, a galaxy, is moving away from the receiver. The light will shift towards the red end of the spectrum. If the galaxy is moving towards the receiver, the light will shift towards the blue end of the spectrum. This effect is caused by the Doppler effect because the wavelengths are either being squished together or stretched apart due to velocity. It effects other waves as well but the moving towards red or blue can't be applied to those. Read http://en.wikipedia.org/wiki/Redshift for the other wavelengths. That and my junior year's physics class was my source.
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.
What is the spectrum of an object that shows blueshift?
The object moving directly towards earth
