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If we saw a galaxy's light had blue shifted what does that tell us about it's motion?
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Why is the light blue shifted in the Andromeda galaxy?
The light from Andromeda is blue shifted because that galaxy is approaching ours. We will eventually collide, as we have probably done in the past.
If a star is moving toward Earth it is?
blue shifted
The Andromeda galaxy unlike most other galaxies has?
It has the same things the other galaxies have i.e. stars planets etc . It's just that it is very big . Comments : I think the answer may be that Andromeda gives out light that is blue shifted instead of the red shift for most galaxies. So the answer is " a light spectrum that's blue shifted".
Would a light source moving away from Earth appear blue shifted or red shifted?
A red shift indicates an object that is moving away from the observer, and a blue shift indicates an object that is moving toward the observer. Both of these are called Doppler shifts.
Is the sun blue shifted or red shifted?
If you were on a plant looking into the stars the sun would be blue shifted. When looking up at the sky we see the sun moving towards us making it look smaller.
Why is the light blue shifted in the Andromeda galaxy?
The light from Andromeda is blue shifted because that galaxy is approaching ours. We will eventually collide, as we have probably done in the past.
What common principle do red and blue shifts share?
Both the Red and Blue shifts are qualities of the doppler effect. Using the example of a speed of light (SOL) traveler speeding along at 186,000 miles in one second, to or from Earth, the SOL traveler would be perceived by an individual on Earth as being in motion via a shift in light's radiated wavelength toward the blue of red spectrum respectively. Another way of thinking about this is that the wavelength of light, to or from Earth, would be compressed (blue shifted) or dilated (red shifted). Alternatively the SOL traveler should observe an individual on Earth as being at rest (blue or red shifted) relative to their own SOL motion to or from Earth.
If a source of light is approaching us at 3000 kmsec then all its waves are?
blue shifted by 1%.
If a star is moving toward Earth it is?
blue shifted
Is an object that is not moving relative to Earth a blue shift?
No, an object not moving relative to Earth is not a blue shifted object. With no relative motion, an object will not be subject to Doppler effect and will not red or blue shift. For an object to be blue shifted, the distance between the object and Earth must be decreasing. The object must be closing on Earth or vice versa.
When a source of light approaches an observer the light appears to be than it actually is?
Blue shifted and when it is moving away it is under a red shift.
The Andromeda galaxy unlike most other galaxies has?
It has the same things the other galaxies have i.e. stars planets etc . It's just that it is very big . Comments : I think the answer may be that Andromeda gives out light that is blue shifted instead of the red shift for most galaxies. So the answer is " a light spectrum that's blue shifted".
What is the color of the shift in the laser light if a helicopter is moving toward you at its fastest speed?
Theoretically, the light would be very slightly blue-shifted because the helicopter is coming closer to you.
How is light red shifted?
Red shift works when galaxies or other bodies are moving father away. the light is stretched, ie it becomes redder. Blue shift is opposite.
Would a light source moving away from Earth appear blue shifted or red shifted?
A red shift indicates an object that is moving away from the observer, and a blue shift indicates an object that is moving toward the observer. Both of these are called Doppler shifts.
Is the sun blue shifted or red shifted?
If you were on a plant looking into the stars the sun would be blue shifted. When looking up at the sky we see the sun moving towards us making it look smaller.
How does a red shift from a blue shift?
A red shift shows us that a object is moving away, while a blue shift shows us an object is moving toward us. Light that has been 'red shifted' has a longer wavelength when it reaches our eyes/telescopes/etc. than it had when it left the object. Light that has been 'blue shifted' now has a shorter wavelength. The reason stretching the wavelength is known as 'red shifting' is that, in the visible spectrum, red light has the longest wavelength. Blue light has a much shorter wavelength than red so when the wavelength is compressed, we call it blue shifting.
