3I/ATLAS en 3D : position et trajectoire en direct

3I/ATLAS vient de l’extérieur du système solaire : son orbite est ouverte (excentricité supérieure à 1), il passe donc une seule fois près du Soleil et repart. La vue s’ouvre sur 3I/ATLAS et sa trajectoire ; vous pouvez voyager dans le temps le long de son passage.

Première observation

15 mai 2025¹

Excentricité

6,1414¹

Distance de périhélie

1,356 UA¹ (valeur dérivée)

Sources

NASA JPL Solar System Dynamics, Small-Body Database. consultée le 2026-09-17. https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html

3D Solar System

Galaxy

01 / 06 Initializing...

Display settings

In the scene

A column header sets the whole column, a group row its group, a row one object. Spacecraft and interstellar objects start hidden.

What the scene shows, object by object
Object	Label	Object	Orbit

Asteroid and comet field

Drawn in Exploration mode, one dot per known orbit.

Rendering

Accessibility and units

Offline use

Download every ephemeris file so the app can place the bodies at any date without a network. Nothing is downloaded until you ask.

Navigation

Drag orbit the view
Scroll · pinch zoom in / out
Click a body or its label to travel to it
Educ · Explo compressed overview vs true-scale voyage
Clock · date scroll to time-travel, tap to pick

Textures: USGS Astrogeology / NASA-JPL (public domain) · Solar System Scope (CC BY 4.0) · NOAA ETOPO 2022 · Halley: Philip Stooke / NASA PDS.
Illustrative surfaces: Bodies never mapped globally have an illustrative texture, not a scientific map; the body card says so, and Sources lists them.
3D shape models: NASA PDS: NEAR (Eros), Hayabusa (Itokawa), Galileo (Ida) · ISAS/JAXA: Hayabusa2 (Ryugu) · NASA/Goddard SVS: OSIRIS-REx (Bennu)
Data: Astronomy Engine · NASA/JPL Horizons · JPL SBDB · NASA GIBS · NASA Planetary Data System (mission context products) · IAU Gazetteer of Planetary Nomenclature · Open-Meteo.com (CC BY 4.0) · ERA5, Copernicus Climate Change Service (ECMWF)