Space Time
Third confirmed interstellar visitor to our solar system, officially C/2025 N1 (ATLAS). Discovered July 2025, it passed perihelion on Oct 29, 2025 at about 1.356 AU from the Sun.
One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.
3I/ATLAS is placed by solving a Keplerian orbit at the simulation time (a = -0.3 AU, e = 6.141351449317625, i = 175.1°).
3I/ATLAS is presented using jpl osculating orbit; two-body visualization data.
3I/ATLAS: mean radius 0.6 km. These values are bundled with the object record and drive the rendered size.
The surface is a procedural shape unless a source record above says otherwise. It is not a measured shape model.
The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.
| Dataset | Last refreshed | Horizon | Automated |
|---|---|---|---|
| Current comets and near-Earth asteroids | no snapshot date | Osculating elements at the snapshot epoch; propagated as two-body conics | Yes, weekly (Monday data job) npm run fetch:data |