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Vesto Slipher and Edwin Hubble were the first who discovered a red shift in nearby Galaxies and as telescopes improved the formula could be applied to more distant Galaxies. The instrument that determines red or blue shifts is called a Spectroscopy.
Ans. 2
The person who discovered (and explained) red-shift in the light from other galaxies was Vesto Slipher.
Edwin Hubble, using Slipher's observations, realised that the amount of red-shift was proportional to the distance of the galaxy being observed. He formalised this as "Hubble's Law". This was what led cosmologists to the conclusion that the Universe is expanding. (see * below)
The instrument that shows a spectrum is a spectroscope; that which measures it is a spectrometer and that which records it is a spectrograph. The instrument that measures red-shift of a distant galaxy can be anything from a travelling microscope to a ruler, depending on the quality of the photographs. Spectroscopy is the name of a set of processes, like Photography or cookery , not any particular instrument.
* The larger stars/galaxies are visible from further away. The larger stars/galaxies have a larger red shift without regard to their distance from us. (re: larger means more gravity means more red shift)
What else can I help you with?
Who discovered blue shift?
The blue shift phenomenon was discovered by the American astronomer Edwin Hubble in the 1920s. He observed that the light from distant galaxies appeared shifted towards the blue end of the spectrum, indicating that these galaxies were moving away from us. This discovery provided crucial evidence for the expansion of the universe.
What did hubble discover as a result of studying the red shift of distant galaxies?
Hubble discovered that the redshift of distant galaxies indicated that the universe is expanding, which provided evidence for the Big Bang theory. This observation also led to the realization that galaxies are moving away from each other, with those farther away moving faster, suggesting an overall expansion of the universe.
What is the relationship between red-shift and distant galaxies?
Redshift is the phenomenon where light from distant galaxies appears to be shifted towards longer (redder) wavelengths. This is due to the expansion of the universe causing the galaxies to move away from us. The amount of redshift is directly related to the distance of the galaxy from us, with more distant galaxies experiencing higher redshift.
Who discovered the red shift in stars the same effect that causes sound waves to change pitch as an object moves towards or away from an observer?
The red shift in stars was first discovered by astronomer Vesto Melvin Slipher in the early 20th century. He observed that the spectral lines of distant galaxies were shifted towards longer wavelengths, indicating that these galaxies were moving away from us.
What does the light from distant galaxies show red shift?
The light from distant galaxies shows redshift because the universe is expanding. As the galaxies move away from us, the light they emit gets stretched, causing its wavelength to increase and shift towards the red end of the spectrum. This redshift can help scientists determine the velocity at which galaxies are moving away from us and provide insights into the expansion of the universe.
Who discovered blue shift?
The blue shift phenomenon was discovered by the American astronomer Edwin Hubble in the 1920s. He observed that the light from distant galaxies appeared shifted towards the blue end of the spectrum, indicating that these galaxies were moving away from us. This discovery provided crucial evidence for the expansion of the universe.
What did hubble discover as a result of studying the red shift of distant galaxies?
Hubble discovered that the redshift of distant galaxies indicated that the universe is expanding, which provided evidence for the Big Bang theory. This observation also led to the realization that galaxies are moving away from each other, with those farther away moving faster, suggesting an overall expansion of the universe.
What kind of Doppler shift did Hubble observe in these distant galaxies?
Most galaxies exhibit a redshift, meaning that they move away from us.
What is the relationship between red-shift and distant galaxies?
Redshift is the phenomenon where light from distant galaxies appears to be shifted towards longer (redder) wavelengths. This is due to the expansion of the universe causing the galaxies to move away from us. The amount of redshift is directly related to the distance of the galaxy from us, with more distant galaxies experiencing higher redshift.
What are the spectral lines of starlight from distant galaxies?
They are the characteristic frequencies of the elements "burning up" in the stars in the galaxy interspersed with absorption lines of other material between these elements and the earth. All these wavelengths will be increased by the red shift which results from the galaxy receding from the earth.
Who discovered the red shift in stars the same effect that causes sound waves to change pitch as an object moves towards or away from an observer?
The red shift in stars was first discovered by astronomer Vesto Melvin Slipher in the early 20th century. He observed that the spectral lines of distant galaxies were shifted towards longer wavelengths, indicating that these galaxies were moving away from us.
The spectral lines of elements when observed in distant galaxies show a shift towards?
The red end of the spectrum.
What does the light from distant galaxies show red shift?
The light from distant galaxies shows redshift because the universe is expanding. As the galaxies move away from us, the light they emit gets stretched, causing its wavelength to increase and shift towards the red end of the spectrum. This redshift can help scientists determine the velocity at which galaxies are moving away from us and provide insights into the expansion of the universe.
Who discovered the red shift?
In 1848, Hippolyte Fizeau first noted a red shift in stars. In 1912, Vesto Slipher first noted a large red shift in nebulae. In 1929, Edwin Hubble published his findings that the size of galaxy's red shift was proportional to its distance from our Earth.
Who discovered red shift?
In 1848, Hippolyte Fizeau first noted a red shift in stars. In 1912, Vesto Slipher first noted a large red shift in nebulae. In 1929, Edwin Hubble published his findings that the size of galaxy's red shift was proportional to its distance from our Earth.
When astronomers study distant galaxies they notice changes to the waves they observe describe the change to the waves they observe?
Because the universe as a whole is expanding, distant galaxies are moving away from us. As a result, electromagnetic waves emitted by those galaxies experience what is known as a red shift. Their wavelengths get longer.
What did hubble discover as a result of studying red shift of distant galaxies?
that the universe was in 1904 expanding. this was due to the lack of blue shift, therefor it can be deduced that the red shift in orrcuring within the galaxy.
