what the characteristics of light received from stars? :/
Roughly the same characteristics as light received from our sun, or even a light bulb. Light is the transmission of energy from a quantum energy packet called a photon. I would say that the light received from a star is really old, but a photon is not actually effected by time. The photon travels at the speed of light, and so would not experience time or be effected by it. The light we receive from stars is very coherent because of the long distance involved, the photons are exceedingly parallel.
