# Arrokoth

*In the Solar System*

The most distant object any spacecraft has visited: New Horizons passed it on New Year's Day 2019, four years after Pluto and 6.6 billion km from here. It is here for that. Two round lobes resting against each other, 36 km end to end, flattened and undisturbed - it was assembled gently out of a local cloud of material rather than battered together, and being too cold and too far out for anything to have happened to it since makes it the best-preserved thing anybody has seen from the era the planets formed in.

| | |
| --- | --- |
| Radius | 9 km |
| Around the equator | 57 km |
| From the Sun | 6,440,443,826 km (-10,742 km/d) |
| From the Earth | 6,338,447,863 km (+1,915,191 km/d) |
| A signal takes | 5 h 52 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=arrokoth
- This object as a page: https://www.orbitalmap.space/o/arrokoth/
- Every object: https://www.orbitalmap.space/o/
- What this site is and what it reads: https://www.orbitalmap.space/llms.txt