December 2, 2021
The Earth is on average roughly 93 million miles from the Sun. This is called an astronomical unit (AU). By comparison, Saturn is 9.5 AU and Neptune is 30.1 AU from the Sun. Everybody’s favorite dwarf planet Pluto is 39 AU from the Sun. The most distant object observed in the solar system is a Trans-Neptunian object named 2018 AG37. Its nickname is Farfarout which is about 132 AU from the Sun. It takes roughly 1,000 years to orbit the Sun.
Farfarout (2018 AG37 is currently the most distant object seen in our solar system. This diagram shows its orbital path compared to the outer planets. Image credit: Tomruen – JPL