For Stargazers' Delight, Uranus and Neptune: The Most Distant Planets

It's officially autumn, and time once again to seek out the two most distant planets of our solar system, Uranus and Neptune. Uranus, in fact, can be seen with just your unaided eyes under a dark, clear sky — if you know where to look. Interestingly, although the planet Uranus can be glimpsed with the unaided eye under favorable conditions, its presence was unknown until March 13, 1781, when William Herschel discovered it by accident using a 6-inch reflecting telescope.