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No. The Doppler shift tells us if the object is moving toward us or away, and how fast. But it says nothing at all about whether, or how fast, the object is moving to the side. Doppler tells us about the part of the velocity that is TOWARD or AWAY. It says nothing about its velocity left, right, up or down.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoThe Doppler effect tells Astronomers whether a star, or galaxy, is approaching or going away from us. It turns out the farther a galaxy is away, the faster it gets away from us - meaning that the Universe is expanding.
Wiki User
∙ 10y agoThe "related link" below explains the basic idea, without too much mathematics.
Einstein's Theory of Relativity is needed to get exact answers, but I'm pretty sure that's not required by this question.
On the Home Page of this link, look for "Curriculum Projects" and
then click on "NAAP Labs".
Then click on "Extrasolar Planets".
Finally, click on "Doppler Effect".
Wiki User
∙ 10y agoI think the question is "wrong". You can't measure the distance to a star using the Doppler effect.
If a star is receding from you, its light will have a "redshift". That means the wavelength of the light has become longer. However, that tells you nothing about its distance.
You can use a redshiftto measure the distance toa galaxy, but not to stars in our Galaxy.
In fact, changes in the color of light are only related to distance for remote galaxies outside our "Local Group" of galaxies.
(Strictly speaking its not actually even a Doppler effect, but a "cosmological redshift".)
Wiki User
∙ 13y agoThe mathematics of the Doppler effect, when applied to the shift in frequency exhibited by the
components of the spectra from stars and planets, reveals the speed with which each one is
approaching or receding from the earth. (Radial component of velocity only.)
Wiki User
∙ 13y agoDoppler shift is a change in the frequencey of an object, when it moves toward you, or away from you. It helps astronomers in that it makes it possible to measure the radial velocity (the part of the velocity that is away from us or towards us). Specifically, it is the Doppler shift that has made it clear that our Universe is expanding.
Wiki User
∙ 10y agoThe redshift can occur in the stars in our Galaxy that are moving away from Earth due to something called the Doppler Effect.
It is also seen in distant galaxies (outside our "Local Group" of galaxies).
The effect in this case is due to the expansion of space, but it's similar to the Doppler Effect.
If an object emitting waves such as light (or sound) is moving away from an observer, the frequency of those waves will be decreased.
The waves are "stretched out". So, we observe lower frequencies and longer wavelengths.
The lowest frequency of light we see is red, so the light of an object moving away is shifted toward the red end of the spectrum, or "redshifted".
In fact light can be shifted to the infrared and lower frequencies, but we still call it a redshift. A "redshift" is simply a shift towards lower light frequencies.
The Universe as a whole is expanding. As a result, most galaxies are moving away from us. The farther they are, the faster they move.
Wiki User
∙ 15y agoIn Astronomy, the Doppler effect is used to determine whether a star or other body in space is moving away from or toward Earth.
Wiki User
∙ 14y agoIt isn't always - sometimes it is blue shifted, depending on the direction, the Doppler change in color can be either.
Wiki User
∙ 14y agowhether it is moving towards "Blue shift", or away from us "Red shift"
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What causes a cosmological redshift?
A redshift occurs when the wavelengths increase in objects by light or electromagnetic radiation levels in an object. In cosmological redshift also has to do with light; however, instead of an increase in wavelengths, there is an expansion of the universe.
What is the redshift star?
The redshift is caused by relative motion that increases the distance from the source to the observer. The faster the source of light is moving away to the observer, the greater the redshift
Is a redshift of 5 equal to a light travel distance of 12.5 billion years?
Yes, a redshift of 5 does equal to a light travel distance of 12.5 billion years.
What kind of shift would you see if a light was moving away from you?
redshift
Is a redshift of 0.6 equal to a light travel distance of nearly 6 billion years?
Yes, a redshift of 0.6 does equal to a light travel distance of nearly 6 billion years (i.e. 5.7 billion years).
What causes a cosmological redshift?
A redshift occurs when the wavelengths increase in objects by light or electromagnetic radiation levels in an object. In cosmological redshift also has to do with light; however, instead of an increase in wavelengths, there is an expansion of the universe.
What cause changes in the light coming from distant stars and galaxies?
The apparent redshift is caused by the Doppler Effect; the frequency of waves is increased by an approaching source and decreased by a leaving source. Since the fgrequencies we see from stars are slightly lower than they should be, we know that the stars and other objects are moving away. The Doppler Effect causes changes of light emanating from distant stars and galaxies.
Stars in your Galaxy have a blueshift a redshift or no shift Explain?
Some stars in our galaxy have a redshift, some a blueshift. This means that some stars are going away from us, while others are approaching us.Some stars in our galaxy have a redshift, some a blueshift. This means that some stars are going away from us, while others are approaching us.Some stars in our galaxy have a redshift, some a blueshift. This means that some stars are going away from us, while others are approaching us.Some stars in our galaxy have a redshift, some a blueshift. This means that some stars are going away from us, while others are approaching us.
What happen if a light move closer to the object?
The redshift that scientists speak of in stars, indicating that they are moving away, is complemented by a shift toward the blue in the spectrum by light moving toward a viewer.
Reasons why astronomers have difficulty looking at distant stars except?
Light years of dust lanes obscure the view of distant stars in visible light. However, radio telescopes can penetrate the dust and can detect (in the x-ray and infrared spectra) the stars in the core of our galaxy.They don't understand how redshift affects stars.
What does the enormous redshift of quasars tell us about their velocity?
That they are receding at more than 90% the speed of light, and that they are not stars in our galaxy because we can't see change.
What is the redshift star?
The redshift is caused by relative motion that increases the distance from the source to the observer. The faster the source of light is moving away to the observer, the greater the redshift
What creates a red shift?
On short distances (ie. within a few million lightyears), the redshift we see is the direct result of the Doppler effect. The Doppler effect causes light from receding sources to be less energetic, and thus red-shifted. On distances exceeding that, redshift can be attributed to the metric expansion of the universe. In cosmological redshift, the shifting of frequencies is basically caused by the stretching of space the light is passing through, and the stretching of the light wave with it.
What causes heat and light in stars?
The heat and the light in stars is the same thermal nuclear fission that our Sun (a star) produces.
How does the Doppler effect measure speed of stars and movement towards or away?
redshift
When it is dark enough you can see the stars?
It is only dark enough to can see the stars if there is no light pollution. Light causes obstruction in view.
What causes the distortion of the light from stars that mean we see them twinkling?
The twinkling of stars is caused by the light from them being distorted by the earth's atmosphere.
