The name Pluto comes from the Greek god of the underworld.
It is the later name of the more well-known Hades and was proposed by Venetia Burney, an eleven-year-old student from Oxford, England. Read more about Pluto facts.



Pluto facts

In 2006, Pluto was reclassified from the planet to the dwarf planet.
It was then that the IAU formalized the definition of the planet as “The planet is a celestial body, which (a) is in orbit around the Sun, (b) has sufficient mass to let its own gravity overcome the forces of the rigid body so that it assumes the shape of hydrostatic balance (almost round) and (c) cleansed the area around its orbit. “


Pluto was discovered on February 18, 1930, by the Lowell Observatory.

For 76 years of discovering Pluto and the time in which he was reclassified as a dwarf planet, he completed approximately one-third of his orbit around the Sun. Pluto has five known moons.


The moons are Charon (discovered in 1978), Hydra and Nix (both discovered in 2005), Kerberos originally P4 (discovered in 2011) and Styx originally P5 (discovered in 2012). Official markings S / 2011 ( 134340) 1 and S / 2012 (134340) 1.


Pluto is the largest dwarf planet.
At one point it was thought that it could be Eris. Currently, the most accurate measurements give Eris an average diameter of 2,326 km with a margin of error of 12 km, and the diameter of Pluto is 2 372 km with a 2 km margin of area.



Pluto is one-third of water.

It is a block of water ice that is more than 3 times more water than all oceans on Earth, the other two-thirds are rocks. Pluto’s surface is covered with ice and has several mountain ranges, light and dark regions and scattering of craters.
Pluto is smaller than the number of moons.


The particular Ganymede, Titan, Callisto, Io, Europa, Triton, and the Earth’s moon. Pluto has 66% of the moon’s diameter and 18% of its mass. Although it is now confirmed that Pluto is the largest dwarf planet for about 10 years. It was thought that it was Eris.



Other Pluto facts

Pluto has an eccentric and tilted orbit.
It ranged from 4.4 to 7.3 billion km from the Sun, which means that Pluto is periodically closer to the Sun than Neptune.


Pluto was visited by one spaceship.
The New Horizons spacecraft, which was launched in 2006, flew by Pluto on July 14, 2015, and took a series of photos and other measurements. The New Horizons are now on their way to the Kuiper Belt to explore even more distant objects.

Pluto’s location was planned by Percival Lowell in 1915.
The forecasts came from deviations that he first observed in 1905 in the orbits of Uranus and Neptune.
Pluto facts sometimes have an atmosphere.


When the elliptical orbit of Pluto facts approaches the Sun, its surface melts and forms a thin atmosphere of nitrogen, which slowly escapes from the planet.


It also has a haze of methane that exceeds 161 kilometers above the surface. Methane is dissociated by sunlight into hydrocarbons that fall to the surface and cover the ice with a dark coating. When Pluto leaves the Sun, the atmosphere freezes back to its permanent state.




Pluto is a dwarf planet discovered in 1930 by Clyde Tombaugh who at that time worked at the Lowell Observatory in Flagstaff, Arizona. Tombaugh accidentally discovered Pluto, looking for an unknown planet called Planet X, which caused interference in the orbits of Uranus and Neptune.


Comparing two photographs of the night sky taken a week apart, he noticed an unknown weak place that probably moved.

Photos obtained later confirmed the moving object and after receiving the suggestion of the name of a new planet from around the world, the name Pluto was announced on May 1, 1930. Pluto’s later observations, however, showed that it was not Planet X, which astronomers were looking for. In fact, it turned out later that Planeta X really did not exist.



The platoon lies in the disk-shaped zone outside the orbit of Neptune, in which there are small icy objects. This region is called the Kuiper Belt, and its inhabitants are called Kuiper Belt objects or Trans-Neptune objects.


But in recognition of Pluto’s special place in the history of astronomy. It was degraded to the dwarf planet, objects found in this region are also called “platoons”. It is believed that this ice region originated in the early evolution of the Solar System.


Not all plutoids are small. Eris, another dwarf planet, is actually more massive than Pluto. Due to the distance, it is difficult to determine what Pluto is made of.


It is believed, however, that it consists of a rocky core. TheĀ  Pluto facts mantle of water ice and a surface covered with methane and cold nitrogen.