Unknown fact about Pluto

Pluto (minor planet designation : 134340 planet) is a dwarf planet in Kuiper belt, a ring of Bobies beyond the orbit of Neptune. it was the first and the largest Kuiper belt object to be discovered. After Pluto was discovered in 1930 it was declared to be the 9th planet from the sun. beining in the 1990s it's status as a planet was questioned following the discovering of several objects of similar size in Kuiper belt, including the dwarf planet Eris. this led the international astronomical union (IAU) in 2006 to formally define the term "planet" excluding pluto and reclassifying it as a dwarf planet.                                                                                                                                                                                                   SIZE AND COMPARISON                                                                                                                                                                                                                                                                                                Pluto has a radius of 1.185km(737 miles) thus it is 1/6 width of earth and a diameter of 2.326km(1.445 miles) . it has 70% of the diameter of earth's moon. mercury, the smallest planet of the solar system, has more than twice the diameter of Pluto. in comparison to the Jupiter, the largest planet of the solar system, it has more than 60 times the diameter of Pluto.                                                                                                                                                                                                                                                  TIME ON PLUTO                                                                                             Pluto spin very slowly and as such, one day there is so fer away from the sun and because it has an unusual oedit one trip around the sun or a year is completed within 248 earth year. pluto  is discovered by Clyde W. tombaugh. it was discovered on 18 Fed, 1930 in Lowell Observatory. average orbital speed of pluto is 4.743km/s Pluto have 5 known Satallites. Aphelion of pluto is 49.305 AU(7.37593 billion km). Perhelion 29.658 AU(4.43682 billion km). Semi-major axis of pluto is 39.482 AU(5.90638 billion km). Eccentricity orital period 247.94 year . surface area of pluto is 1.779x10000000 km. sarface pressure of pluto is 1.0 Pa. atmosphere of pluto contain nitrogen,methane,carbon monooxide etc.                                                                                                                                                                                STRUCTURE AND SURFACE                                                                                                                                                                                                                                                                                Pluto is made out of primarily from nitrogen ice and rock. it's surface is covered eith mountains, valleys,and craters .it's surface varies in both brightness and colour. Some regionss are charcoal black dark orange,white and has some portion of red similar to mars some notable regions are:                          1. tombaugh region also known as the heat a large bright area                                                                  2. chulhu machula also known as the whale a large dark area                                                                    3. brass knuckless a series of dark areas located near the equator.                                                                                                                                                                                                                                  Scientists believe that Pluto has a dense core surrounded by a mantle of water ice.  the atmosphere of pluto is similar to a comet. it is thin ,tenous and expands when it comes closer to the sun but then it collopses as it moves farther away.                                                                                                                When pluto approaches the sun, the ice change from solid to gas,and they rise up temporarily to form a thin atmosphere is consistent with nitrogen methane and cardon monooxide.                                                                                                                                                                                                                KEY FACTS AND SUMMARY                                                                                                                                                                                                                                                                                          Pluto is the 9th largest and 10th most massive known object directly orbiting the sun.                              it is the 1st kuiper belt object to be discovered and itis the largest known plutoid.                                      pluto was discovered in 1930 by clyde tombaugh.                                                                                      pluto was classified as a planet for 75 years. it held the title of the 9th planet of the solar system.           pluto was declassified from the status of planet to that of a dwarf planet in 2006 after another Eris was discovered.                                                                                                                                                    The controversial classification of pluto forced the scientific community to come up with the definition of a planet.                                                                                                                                                    pluto is primarily made out of ice and rock. it relatively small even when compared to earth's moon being one sixth of the moon's mass and 1/3 of it's volume.                                                                          pluto has five known moons: charon,styx,nix,kerberos and hydra.                                                            pluto doesn't seen to have a magnetic field.                                                                                                  the surface temperatures vary from -375 to -400 degrees fahrenheit -226 to -240 celsius.                          charon is the biggest known moon of any dwarf planet.                                                                                                                                                                                                                                                     NAMING PLUTO                                                                                                                                                                                                                                                                                                            After Pluto was discovered a survey was conducted to name the planet. venetia burney an 11 year old school girl in oxford proposed the name pluto.                                                                                            the name won by popular votes and it was announced to the pudlic on the 1st of may 1930. the littie girl received a gift for naming the planet, a mordern equivalent of 450 USD.                                             Pluto's declassification from a planet to that of a dwarf planet sparked many debatesin the scientific community. it forced them to come up with a definition, and now we know that there are three requirement for a celestial body to be considered a planet                                                                            The object must orbit around the sun or any other star.                                                                               It must be massive enough to be rounded by it's own gravity.                                                                      It must have cleared the neighbourhood around it's orbit.                                                                                                                                                                                                                                                   OTHER CHARACTERSTICS                                                                                                                                                                                                                                                                                           Pluto periodically comes closer to the sun than neptune but they will never collide.                                  The first spacecraft to visit Pluto was NASA's New horizons. It arrived on Pluto in 2015. After a year journey. The person who discovered Pluto had his remains placed aboard the spacecraft.                         Pluto is half the width of the united states. it is smaller than earth's moon.                                                  many people consider pluto as a planet to this day while the official have declared that Pluto is a dwarf planet. Regardless of how you view Pluto, it surely is a beautiful world.                                                   The surface area of Pluto is a bit bigger than russia.                                                                                   Usually,the light from the sun reaches pluto in about 5.5 hours.                                                                   Pluto's 2nd largest moon hydra is 5.000 times fainter than Pluto.                                                               Pluto was closer to the sun than neptune from 1979 to 1999.                                                                     Walt Disney named a canine companion of Mickey mouse,Pluto.                                                             The distance b/w Pluto and it's moon charon, is about the same as from one side of south america to the last side of north america.                                                                                                                           Pluto has more than twice the diameter of ceres the largest object in the asteroid belt.