Neptune

Neptune — planet, explore its interactive 3D model in Cosmoscope.

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

The first planet found by mathematics before telescopes — its gravity’s tug on Uranus gave it away. The windiest world known: supersonic jets tear through its blue methane haze at 2,100 km/h.

Radius

24,622 km

Mass

1.02 × 10²⁶ kg

Gravity

11.15 m/s²

Day

16 h 6 m

Year

164.8 Earth years

Mean temp

−200 °C

Moons

16

Semi-major axis

30.1 AU

Explore Neptune in 3D

Cosmoscope places Neptune 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.