| Minorplanet: | yes |
| Background: |
|
| Discovered: | 5 September 2021 |
| Barycentric: | yes |
| Epoch: | 25 February 2023 (JD 2460000.5) |
| Uncertainty: | 3 |
| Observation Arc: | 5.11 yr (1,867 days) |
| Earliest Precovery Date: | 24 July 2017 |
| Perihelion: | 55.541 AU |
| Semimajor: | 990.9 AU |
| Eccentricity: | 0.94395 |
| Mean Motion: | / day |
| Inclination: | 7.644° |
| Asc Node: | 108.345° |
| Arg Peri: | 208.574° |
| Mean Diameter: | 100–300 km |
| Magnitude: | 24.6 |
| Abs Magnitude: | 6.74 |
is an extreme trans-Neptunian object discovered by astronomers Scott Sheppard, David Tholen, and Chad Trujillo with the Subaru Telescope at Mauna Kea Observatory on 5 September 2021. It resides beyond the outer extent of the Kuiper belt on a distant and highly eccentric orbit detached from Neptune's gravitational influence, with a large perihelion distance of 55.5 astronomical units (AU). Its large orbital semi-major axis (~1,000 AU) suggests it is potentially from the inner Oort cloud. and both lie in the perihelion gap that separates the detached objects from the more distant sednoids; dynamical studies indicate that such objects in the inner edge this gap weakly experience "diffusion", or inward orbital migration due to minuscule perturbations by Neptune. While Sheppard considers a sednoid, researchers Yukun Huang and Brett Gladman do not.
's heliocentric distance was when it was discovered. It has been detected in precovery observations by the Dark Energy Survey at Cerro Tololo Observatory from as early as July 2017. It last passed perihelion in the early 1990s and is now moving outbound from the Sun.