The inner portion of a halo may have a dull, reddish tint, owing to the fact that red light is refracted least.
(The inner portion of a halo; may have; a dull, reddish tint) (The inner portion of a halo; owing; to the fact that red light is refracted least) (red light; is refracted least; )
The inner portion of a halo The inner portion of a halo red light
may have owing is refracted least
a dull, reddish tint
to the fact that red light is refracted least