How fast does this light meet the telescopes of the astronomers?
Astronomers view light coming from distant galaxies moving away from the Earth at speeds greater than 10% the speed of light. How fast does this light meet the Telescopes of the astronomers?
Good question, gravity does effect the light waves. a bend here, a push there=fluctuation.
If light source X is moving away from Observation point Y and Y is constant fixed point, (with is in our conception impossible) The light from Source X would reach the observer at Fixed Point Y , but if the objects are moviong away at faster than speed of light, no light would be visible, it self negates by it’s own velocity.
The speed is not affected at all; it is always 299,796 km/sec, however measured. But the wavelength IS affected: the Doppler effect creates a red shift (longer wavelengths).
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light travels at approx. 186,000 mi per /sec regardless of the movment of the object it strikes that is one foot per nano second
this article might be helpful
http://en.wikipedia.org/wiki/Speed_of_light
References :
Good question, gravity does effect the light waves. a bend here, a push there=fluctuation.
If light source X is moving away from Observation point Y and Y is constant fixed point, (with is in our conception impossible) The light from Source X would reach the observer at Fixed Point Y , but if the objects are moviong away at faster than speed of light, no light would be visible, it self negates by it’s own velocity.
References :
The speed doesn’t change but the Doppler effect shifts the wave length toward the red.
References :