Pluto

Pluto — dwarf planet, shown live in Cosmoscope, a real-time 3D map of the universe.

A world of nitrogen glaciers and water-ice mountains, with a heart-shaped plain photographed by New Horizons in 2015. One Pluto year lasts longer than the entire history of its discovery.

Radius
1,188 km
Mass
1.31 × 10²² kg
Gravity
0.62 m/s²
Day
6.4 Earth days
Year
248 Earth years
Mean temp
−229 °C
Moons
5
Semi-major axis
39.5 AU

Seeing Pluto in real time

Cosmoscope puts Pluto at its true position in the solar system, computed from JPL-derived ephemeris and updated continuously. Open the live 3D view to see, in real time, how far Pluto is from the Sun and from Earth right now, how many minutes or hours light takes to cross that gap, and how fast it is moving along its orbit. Scrub the timeline to place Pluto where it was on any past date, or where it will be years from now.

Interactive universe A living map of the solar system
Interactive universe
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