Diameter3.6 million m
21,557Washington Monument heights
152 billionthsVoyager 1 distances
Photo from Wikimedia Commons
Io
The most volcanically active body in the solar system/Moons
Io is Jupiter's innermost Galilean moon and the most volcanically active object in the solar system, with over 400 active volcanoes. Tidal heating from Jupiter's immense gravity drives this extreme volcanism. Its surface is constantly reshaped by lava flows and volcanic deposits, giving it a colourful, pizza-like appearance.
Measurements
Mass89.3 sextillion kg
3.1 octillionGrains of rice
893 quintillionBaby elephants
6.2 quintillionSchool buses
Mean orbital speed17,334 m/s
15,758Waddling penguins
11,556Elevator speeds
1.55Earth escape velocities
Mean surface temperature110 K
4 tenthsRefrigerators
7.3 hundredthsPottery kiln firings
3.8 tenthsHardwood floors
Background; volcanic hotspots exceed 1600 K
Orbital period152,853 s
414 billionthsIce ages
60.7TV episodes
17Marvel movies
About 1.77 Earth days
Mean distance from Jupiter422 million m
21.1 millionWindmill heights
7.7 billionPink erasers
811 millionHuman forearms