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How to Use the 3I/ATLAS Interstellar Object 3D Explorer
Open the 3I/ATLAS Interstellar Object 3D Explorer and slide the selector (0-2) to compare 1I/'Oumuamua, 2I/Borisov, and 3I/ATLAS side by side, each with its own real published orbit, size, and coma-activity figures.
- Open https://freetoolonline.com/space-3d/3i-atlas-interstellar-object.html and wait for all three objects, their path curves, and the Sun to render.
- Drag the selector (0-2) to swap the highlighted object between 1I/'Oumuamua, 2I/Borisov, and 3I/ATLAS - the default position (2) shows 3I/ATLAS.
- Read the facts panel for the active object's real discovery date, orbital eccentricity, inclination, perihelion, speed, nucleus size, and coma status.
- Check the comparison table below the facts panel - the highlighted row is the active object.
- Notice how the three path curves widen as eccentricity rises - 'Oumuamua's is the tightest, 3I/ATLAS's is the widest, reflecting its real eccentricity of about 6.1.
- Drag to orbit and scroll or pinch to zoom to see each object's coma (or its absence, for 'Oumuamua) up close.
Key published figures
| Figure | Value |
|---|---|
| Orbital eccentricity (3I/ATLAS) | about 6.1 (most extreme of the three) |
| Orbital eccentricity ('Oumuamua) | about 1.2 |
| Orbital eccentricity (Borisov) | about 3.36 |
| 3I/ATLAS closest approach to Earth | about 1.8 AU (270 million km) - no impact risk |
Next: the when-to-use guide or the vs-alternatives comparison. Open the 3I/ATLAS Interstellar Object 3D Explorer.
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