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Observation of the shift of a stars spectrum toward the red or blue enables us to determine the stars?
Wiki User
∙ 13y ago
The star's velocity (away from us, or towards us).
Wiki User
∙ 13y ago
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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.
Why does the sky sometimes seem to be pink and red at night before rain?
The thin clouds bend the light toward the red /pink area of the spectrum. As the storm gathers, the particles are denser and the refraction is further up the spectrum
Can you determine the right and left valves of the clam?
To determine the right and left valves of the clam, put the valve in your hand with the nacre facing you and the beak pointing up. If the beak is toward the right, it is the left valve, and if it is toward the left, it is the right valve.
What are 3 things that we can learn about a star by observing it's spectrum?
By observing far away stars in our galaxy through a spectroscope, we are able to see the spectrum that appears from the substances in these stars. Each element has a unique spectrum when light is shone through it, so we are able to determine what elements make up certain stars.
What is the evidence of motion of the universe?
The most important piece of evidence that shows that the universe is in motion is the Doppler Effect, also termed the red shift. This basically means that objects headed away the observer will have their light bent toward the "red" (lower frequency) side of the light spectrum while objects headed toward the observer will have their light bent toward the "blue" (higher frequency) end of the spectrum. By using the Doppler Effect we are able to that the majority of the universe is in motion, expanding outward.
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 did Hubble conclude when he noted that light emitted from stars is shifting toward the red of the electromagnetic spectrum?
He noted that light emitted from stars is shifted further toward the red of the electromagnetic spectrum . From this he concluded that the universe was expanding.
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.
Moving Along the Spectrum toward Health?
The Spectrum Diet is your roadmap to better health. With no rigid rules, the Spectrum Diet is suitable for anyone wanting to lower the risk for disease and maintain a healthy lifestyle. The Spectrum Diet includes elements such as regular exercise, stress reduction, and meditation. The Spectrum Diet is less of a diet and more of a blueprint. It can be tailored to meet your individual needs and goals while working with your preferences and genetic makeup. The Spectrum Diet teaches you how to eat rather than what to eat. It is a sustainable system that moves you along the spectrum toward better health.
Which English philosopher described the Enlightenment tendency toward observation and logic to explain the world?
One English philosopher who described the Enlightenment tendency toward observation and logic to explain the world was John Locke. Locke advocated for empirical observation and reasoning to acquire knowledge and believed in the importance of individual rights and limited government.
How do light waves appear to an observer as the light source moves towards the observer?
If we measure the spectrum of the light, we can determine whether the light is moving toward us or away from us. Sunlight looks white, but is actually made up of thousands of individual colors, and the amount of each color depends on what the star is made of. In the far future, spacemen will be able to detect which star is which, by measuring the spectrum of the light. By measuring the pattern of the spectrum, and the exact frequency of the light waves, we can determine whether the light source is moving toward us or away from us. (Actually, that isn't exactly true; we couldn't tell if it was moving toward us, or WE were moving toward IT. But we will know what we're getting closer together.) There is one other "Gotcha!" about this. If the spectrum indicates that the light source is moving away from us, it is possible that the light source is very near a black hole. Gravity affects light just like it affects mass, and sometimes it is difficult to tell whether the light source is moving away, or if gravity is pulling the light away. Usually, we will be able to determine which is happening from other measurements.
What did Hubble conclude when he noted that light emitted from stars is shifting toward the red end of the spectrum?
That they were receeding
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.
What did hubble conclude when he noted that light emitted from stars is shifting toward the red end of that electromagnetic spectrum?
(A) The universe is expanding.
What did Hubble conclude when he noted that light emitted from stars is shutting toward the red end of the electromagnetic spectrum?
The universe is expanding.
What did Hubble conclude when he noted that light emitted from stars is shifting toward the red end of the electromagnetic spectrum?
He concluded that the universe is expanding.
What are differences in colors of moving objects in space that are approaching and moving objects that are moving away?
Objects moving toward you will have a blue shift in their spectrum and objects moving away from you will have a red shift in their spectrum. This is known as a doppler shift.
