| Mean distance from Sun: | 19.2 Astronomical Units 2,867,000,000 km |
|---|---|
| Diameter: | 52,300 km |
| Mass: | 14.54 Earths |
| Density: | 1.2 grams per cubic centimeter |
| Surface temperature: | less than -250 F |
| Orbital period: | 84.01 years |
| Rotational period: | Appoximately 16 hours |
Without the information gathered by Voyager 2, little would be known about this distant planet. Although visible in small to medium telescopes, not nuch is revealed by Earth-based observation other than Uranus' pale blue color. The planet is now know to have a system of at least nine rings.
