A few facts about Pluto (Although not a planet but worth a mention)

• Pluto is considered as a dwarf planet since 2006.
• Mass of Pluto is 1.30900 x 10²² Kg.
• Distance of Pluto from the Sun is 39.5 astronomical units.
• Pluto completes one revolution in 248 years.
• It was discovered by Clyde Tombaug in 1930.
• Pluto is extremely cold as it receives very less sunlight.
• International Astronomical Union decided on the below criterion to call an astronomical object a planet:
• Its gravity should be enough to give it a round shape
• It should orbit around the sun
• Its path should be clear
• Pluto fails to get full marks in the above as its orbit is not clear, there are five known objects that are sometimes categorised as its satellites and sometimes as individual dwarf planets.