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Which has a higher frequency a star moving away from earth or towards earth?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 13y ago
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Why is the Andromeda galaxy moving toward earth?
Sorry, Andromeda and earth are moving away from each other, not towards each other.
If a galaxy is moving towards the earth what direction does its spectrum move?
It will be blue shifted
What phenomenon accounts for the blue shift of a star moving towards Earth?
The Doppler effect
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.
How does gravity keep the moon in orbit earth?
The moon is falling, but since the Earth's gravitational pull is constantly acting on it, the moon keeps falling but it is moving towards the Earth so it move in an egg shaped motion.
How can astronomers determine whether a star is moving towards or away from earth?
Astronomers determine whether a star is moving toward or away from the Earth via the Doppler effect. Imagine a motorcycle moving past you. As it drives towards you, it has a higher frequency, and a lower frequency when it drives away. The same thing happens with light. As an object moves towards us, its light has a higher frequency and lower wavelength - this is called blueshift. As an object moves away from us, its light has a lower frequency and higher wavelength - this is called redshift.
How can astronomers determine whether star is moving toward or away from earth?
Astronomers determine whether a star is moving toward or away from the Earth via the Doppler effect. Imagine a motorcycle moving past you. As it drives towards you, it has a higher frequency, and a lower frequency when it drives away. The same thing happens with light. As an object moves towards us, its light has a higher frequency and lower wavelength - this is called blueshift. As an object moves away from us, its light has a lower frequency and higher wavelength - this is called redshift.
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.
What is blue shift?
Blue shift is a phenomenon whereby a moving object emits light in such a way that the waves of light actually posses a higher frequency than when emitted. Its like a pitcher throwing a fastball versus the same pitcher throwing a fastball from a moving vehicle; to an observer on the side of the road, the ball has a higher velocity when being thrown from the vehicle than from a stationary pitcher. The higher frequency of the light results in a shift towards the blue-end of the visible light spectrum; hence the name blue shift. This is a method used in astronomy to determine that a visible object is moving towards the Earth.
Why is the Andromeda galaxy moving toward earth?
Sorry, Andromeda and earth are moving away from each other, not towards each other.
How fast is the light from the star moving towards the earth?
47km/h
Why earth is in motion and what external force is acting upon it?
If something is moving, no force is required for that something to continue moving. That doesn't mean there are no forces acting on Earth; for example, the Sun attracts Earth towards it. But that's not what keeps the Earth moving.
What is the spectrum of an object that shows blueshift?
The object moving directly towards earth
If a galaxy is moving towards the earth what direction does its spectrum move?
It will be blue shifted
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.
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.
If the earth were not rotating wind would prefer to move towards areas of pressure?
the Earth is not moving http://www.fixedearth.com/
