Everyone talks about Pluto now. An interplanetary spacecraft has flown by it at last! Even if we cannot visit Pluto ourselves, this is rather good: if we landed there, our Pluto time would be so different from the time on Earth that we would never see our loved ones again. Pluto requires 246.04 Earth years to make a revolution around the Sun. One year there lasts that many years on Earth. Imagine what we would find at home on coming back!
1.Pluto's Place In The Solar System
Pluto is the second dwarf closest planet to the Sun. From 1930, when Pluto was discovered, to 2006, it was considered the ninth planet of the solar system. Now we know that it is the second largest dwarf planet, the first being Eris.
2.Pluto's Temperature And Gravity
Pluto is very cold. Its temperature is on average 190 to 200 Celsius degree. It also has weak gravity: a person weighing 45 kg here would weigh only 3 kg there, which, of course, is good news for those who want to weight less. Sunlight on Pluto reaches the same intensity as the moonlight on Earth.
3.How Pluto's Name Came About
When Pluto was first discovered in 1930, a contest was announced for the best name for the new planet. Then the 11-year-old girl, Venetia Burney of Oxford, UK, won the competition having offered the name "Pluto." She explained that she chose this name, because the planet was dark and distant, as the god of the underworld.
4.Other Connections To Greek Mythology
Because the planet was named after the Greek Mythological god of the Underworld, its main satellite was named after Charon. In Greek Mythology, Charon was the ferryman of Hades who carried souls of the newly deceased across the rivers Styx and Acheron that divided the world of the living from the world of the dead. Other satellites of the planet Pluto also have Mythological connections. They are called Styx, Kerberos, Nyx, and Hydra.
5.Pluto and the Sunlight
Light from the Sun takes about 5.5 hours to reach Pluto at its average distance (39.4 AU). In 2014, Pluto was 32.6 AU from the Sun.
6.Other Planets Near Pluto.
In 2005, another planet, Eris, was discovered behind the ninth planet Neptune. Later, in 2011, Kerberos was also found. This discovery was followed by the discovery of Styx in 2012.
7.How Does Pluto Look From Earth
To see Pluto from Earth is like trying to see a walnut from the distance of 50 km.