ʻOumuamua

ʻOumuamua — interstellar object, explore its interactive 3D model in Cosmoscope.

Explore ʻOumuamua in a live 3D Solar System. Follow its calculated motion and inspect real astronomical data, distances and orbital facts.

The first known visitor from another star system, spotted in 2017 as it raced away from the Sun. It tumbled, looked extremely elongated or flat, and got a small extra push with no visible coma — a puzzle still debated.

Discovered

19 Oct 2017 — Robert Weryk, Pan-STARRS

Perihelion

9 Sep 2017, 0.26 AU

Speed

~26 km/s relative to the Sun, far from it

Shape

Very elongated or flat, roughly 100–400 m — illustrative rock shown

Puzzle

Sped up slightly with no visible coma

Trajectory

Open hyperbola (e = 1.20) — JPL SBDB, two-body

Explore ʻOumuamua in 3D

Cosmoscope places ʻOumuamua in the Solar System using astronomical ephemeris or orbital elements, updated for the simulation time. Explore its calculated motion, distance and orbital facts in the interactive 3D view. Accuracy depends on the orbital model and its valid time range.