Proper Name | None | Minor Planet Designation | Unassigned | Provisional Designation | 2015 RR245 | Orbital Period | 731 years, 6 months | Distance from the Sun | Semi-Major Axis: 12,144,942,650 km (81.18 AU) Perihelion: 5,051,721,558 km (33.77 AU) Aphelion: 19,238,163,743 km (128.60 AU) | Eccentricity | 0.5829 | Rotation Period | 8 hours, 21 minutes | Diameter | c.670 km | Moons | None known | Parent star | The Sun, yellow dwarf star | Other planets in this system | Mercury, terrestrial planet Venus, terrestrial planet Earth, terrestrial planet Mars, terrestrial planet Jupiter, gas giant Saturn, gas giant Uranus, ice giant Neptune, ice giant Numerous dwarf planets, asteroids and other bodies
| Notes | This planetoid of the Solar System's Kuiper Belt measures nearly 700 km in diameter, and thus is likely to meet the criteria for classification as a dwarf planet. It has a highly eccentric orbit that can carry it nearly 130 AU from the Sun, more than four times as distant as Neptune. |
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