# Quaoar

*In the Solar System*

A large Kuiper belt object about half Pluto's width, here for its size, with a moon called Weywot - and, since 2023, two rings. They are the reason it is interesting: they sit far outside the distance at which a ring is supposed to collapse into a moon, which means the rule everybody used is missing something. The rings were found the way almost everything out here is found, by watching a star blink out behind it.

| | |
| --- | --- |
| Radius | 545 km |
| Around the equator | 3,424 km |
| From the Sun | 6,373,605,332 km (-12,916 km/d) |
| From the Earth | 6,303,582,720 km (+2,250,002 km/d) |
| A signal takes | 5 h 50 m |

Distances and speed are computed from JPL Horizons trajectories and are true of 2026-09-05, changing at the rate given beside each. The interpolation itself is good to a few kilometres; what ages these figures is the date, not the arithmetic.

## Elsewhere

- On the live map: https://www.orbitalmap.space/?world=solar-system&focus=quaoar
- This object as a page: https://www.orbitalmap.space/o/quaoar/
- Every object: https://www.orbitalmap.space/o/
- What this site is and what it reads: https://www.orbitalmap.space/llms.txt