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What else can I help you with?
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 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.
Why is the Andromeda galaxy moving toward earth?
Sorry, Andromeda and earth are moving away from each other, not towards each other.
Which direction are galaxies moving when they experience blue shift?
When galaxies experience blue shift, they are moving closer to us. This phenomenon occurs when the light emitted by the galaxy is compressed into shorter wavelengths, shifting it toward the blue end of the spectrum. Blue shift is typically observed in galaxies that are part of a gravitational interaction or are falling into a larger galaxy. In contrast, galaxies moving away from us experience red shift, where the light is stretched into longer wavelengths.
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 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.
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 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.
The Andromeda galaxy show is a blue shift in its spectra What does this tell us about its motion relative to the earth and the rest of the soloar system?
The blue shift in the spectrum of the Andromeda galaxy indicates that it is moving towards the Earth and the rest of the solar system. This is because the light waves from the galaxy are compressed as it moves closer, causing the wavelength to shift towards the blue end of the spectrum.
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 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.
Why is the light blue shifted in the Andromeda galaxy?
The light from the Andromeda galaxy is blue-shifted because the galaxy is moving towards us due to the effects of gravity and the expansion of the universe. This motion causes the wavelengths of light emitted by the galaxy to appear slightly compressed towards the blue end of the spectrum.
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.
