How long is a day on pluto
- how big is plutos diameter
- how big is plutos diameter in km
- how big is plutos diameter in miles
- how long is plutos diameter
Pluto mass.
How long is a year on pluto
How Big Is Pluto?
After 76 years of classification as a planet, Pluto was demoted in 2006 to a dwarf planet, in part because of its size but also because of its minor gravitational effects on the bodies around it.
When NASA's New Horizons mission visited in 2015, it took the most accurate measurement of the world, revealing it to be larger than previously thought, but still not large enough to be qualified as full-grown planet. Pluto remains one of the most well-known non-planetary bodies in the solar system.
Radius, diameter and circumference
When New Horizons arrived at Pluto, it measured the diameter of the world to be 1,473 miles (2,370 kilometers) across, about two-thirds the diameter of Earth's moon.
This makes it larger than the dwarf planet Eris, once thought to be larger than Pluto. Eris is 1,445 miles (2,326 km) in diameter.
"This settles the debate about the largest object in the solar system [beyond Neptune]," New Horizons principal investigator Alan Stern of the Southwest Research Institute in Boulder, Colorado, said during a NASA press briefing reviewing the miss
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- how large is pluto in diameter