But the rising and setting moon does not have a larger angular size.
Alex. F. Burr
In a message dated 8/23/2013 1:14:34 P.M. Mountain Daylight Time,
bnettles@uu.edu writes:
I haven't done it, but I expect that the spectral measurement of moonlight
from a rising and setting moon will be much "redder" than the overhead
moon, but the larger angular size causes the light to be coming through a more
diffuse path and so the redness isn't as pronounced