at county line (Rusk/Sawyer) in northern Wisconsin.
The faint color on the horizon is called "airglow". Airglow (also called nightglow) is a faint
emission of
light by a planetary
atmosphere. In the case of
Earth's atmosphere, this
optical phenomenon causes the
night sky never to be completely dark, even after the effects of
starlight and
diffusedsunlight from the far side are removed.)
