Effects
All of this means that Saturn is a frozen planet. The tops of the gaseous clouds average minus 285 degrees Fahrenheit. The temperatures below this hydrogen and helium gas layer are considerably warmer than those at the top, with estimates as warm as minus 20 degrees near the surface. The helium gradually sinking through the hydrogen is thought to create the chemical reactions that make this possible.
http://www.ehow.com/about_4601019_what-average-temperature-saturn.html
t is the sixth planet from the sun and, before the invention of the telescope, was the farthest planet that could be observed with the naked eye.
Huh? I quit reading right about here as even after the invention of the telescope it is the farthest planet that can be observed with the naked eye.