[mdmathis6]

Shorter visible wave lengths of light have less amplitude than longer wavelengths of light...longer wavelengths "carry farther". Light from more distant galaxies has longer to get here and it travels thru regions of varying densities of gas and dust. It stands to reason that more distant points of light would appear redder as the shorter wavelengths would be absorbed by distance and variable matter densities in the voids of space. I suspect that after a certain distance, the ability to guage a star or galaxy's speed or direction relative to our own by means of red or blue shift must become indetirminate related to distance and particulate density. It takes more energy to produce higher wavelengths(at a lower frequency) at a given luminance than it does lower wavelengths(at a higher frequency). Somebody out there want to blow holes in my blather...go for it, I await instruction!

[js1138]

It stands to reason that more distant points of light would appear redder as the shorter wavelengths would be absorbed by distance and variable matter densities in the voids of space.

Changes in the intensity of light at various frequencies caused by absorption of dust, etc, are unrelated to frequency shift.

Correct me if I'm wrong.