You may want to refine the question. Red shift is the systematic shift of spectral lines from very distant cosmic sources toward the red end of the spectrum. It seems to derive primarily from the Doppler effect, so one might say that it is Dopplered toward the red. I can think of no other specific name for it, so am not certain what you are asking.
Light is increasingly redshifted as it approaches a black hole due to the strong gravitational pull of the black hole. This gravitational pull causes the light waves to stretch out, which results in the light being shifted towards the red end of the spectrum.
That the galaxy is moving away from us.
The expansion of the Universe results in the light from faraway galaxies being redshifted. This is called the "cosmological redshift"; it can be compared with the Doppler effect (which also causes a redshift), but the details are somewhat difference.It is an observed fact that most galaxies are redshifted; the explanation that seems most reasonable is that it is caused by the cosmological redshift. This means that space itself is expanding.
The light from distant galaxies is redshifted. The only reasonable explanation for that is that the galaxies are moving away from us.
When the spectrum of light from a star is redshifted, it indicates that the star is moving away from the observer. This is due to the Doppler effect, where the wavelengths of light stretch, causing them to shift toward the red end of the spectrum. Redshift can also suggest the star is part of an expanding universe, as seen in distant galaxies. Overall, redshift is a key indicator of the star's velocity relative to Earth.
Objects within the solar system.
The light waves are redshifted, meaning their wavelengths increase and their frequencies decrease. This effect is due to the Doppler effect, where the motion of the object causes a shift in the observed wavelength of light.
A spectral line that appears at a wavelength of 321 nm in the laboratory appears at a wavelength of 328 nm in the spectrum of a distant object. We say that the object's spectrum is red shifted.
Edwin Hubble proved the existence of other galaxies by observing the redshift of light from distant celestial objects. In the 1920s, he analyzed the spectra of these objects and discovered that their light was redshifted, indicating they were moving away from us. By correlating the redshift with their distances, Hubble established the relationship known as Hubble's Law, demonstrating that the universe is expanding and that these distant, redshifted objects were indeed separate galaxies beyond the Milky Way. This groundbreaking work fundamentally changed our understanding of the universe's structure.
The flashing red light falling into a black hole would appear to slow down and eventually stop as it approaches the event horizon. The light would also become increasingly redshifted, appearing redder and dimmer to an observer from a distance.
The redshift of distant galaxies is believed to be a result of the Doppler effect - in other words, the light is shifted towards lower frequencies ("redshifted") due to the fact that the galaxies move away from us.
No. The vast majority of stars are so far away that even though their light is reaching us, they cannot be seen without a telescope. Additionally, the farthest stars from Earth are moving away from us so fast that their light is redshifted beyond the visible spectrum.