# Lutetia

*In the Solar System*

A hundred-kilometre asteroid in the main belt, here because Rosetta went past it in July 2010 on the way to its comet - the largest asteroid anything had seen close up at the time. It photographed a heavily cratered surface and measured a density high enough that Lutetia is probably a primordial body that never broke up, one of the few left.

| | |
| --- | --- |
| Radius | 49 km |
| Around the equator | 308 km |
| From the Sun | 321,616,112 km (-216,359 km/d) |
| From the Earth | 289,764,347 km (+1,495,591 km/d) |
| A signal takes | 16 min |

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=lutetia
- This object as a page: https://www.orbitalmap.space/o/lutetia/
- Every object: https://www.orbitalmap.space/o/
- What this site is and what it reads: https://www.orbitalmap.space/llms.txt