Pluto-Dwarf Planet
Since its discovery in 1930 , Pluto has been the subject of debates about the true nature of the planet or not. Always been considered as the smallest planet in the solar system , it is also smallest of our moon.

The latest astronomical discoveries have highlighted the existence of an entire asteroid belt beyond the solar system. This discovery which established once and for all the de-classification of Pluto from planet to asteroid. In fact asteroids have been discovered even larger than Pluto. The source of contention was the discovery of 2003 UB313 which was given the name of the planet Xena (from the greek foreign ), 10 planet of the solar system , as at the time of its discovery, Pluto was still considered a planet. Others took instead this discovery as the reason for which it was necessary to reclassify Pluto as an asteroid and no more planet.

This last vision was enshrined in Prague from the International Astronomical Union (IAU), which specified a precise definition to classify a planet in the astral body :

“The planets of the solar system 8 are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. There are also a number of Dwarf Planets. To these belong Pluto, 2003 UB313 and Ceres which is between Mars and Jupiter. The other celestial bodies that revolve around the sun, such as asteroids and comets, are now defined as a Small solar system body

8-planets-of-solar-systemPluto is then incorporated into the asteroid belt outside the solar system, and declassified by the planet. The solar system is therefore composed of eight planets and no more nine.


Realated Articles:

  • Stellarium – Virtual PlanetariumStellarium – Virtual Planetarium Stellarium is a software project that allows the user to use your PC as a virtual planetarium. E 'can calculate the position of the sun, moon, planets and stars, and play in the sky as they would a...
  • Orbiter – Space Flight SimulatorOrbiter – Space Flight Simulator ORBITER is a completely FREE space flight simulator, which takes you beyond the boundaries of 'atmosphere. Launch the Space Shuttle from Kennedy Space Center to issue a Satellite, Rendezvous with t...
  • Hubble retiresHubble retires The Hubble Space Telescope (HST abbreviated English name from the initials of the Hubble Space Telescope, or just Hubble) is a telescope placed in the outer layers of Earth's atmosphere, about ...
  • April 12, 1961 – The First Man in SpaceApril 12, 1961 – The First Man in Space Exactly 50 years ago, April 12 1961, began the epic of man in space. Yuri Gagarin, ayouth of 27 years, aware that he could not accomplish other, was the first man to travel around the earth orbit...
  • NASA publishes the most beautiful pictures of the earthNASA publishes the most beautiful pictures of the earth Among the many photographs of the Earth, the best are undoubtedly those produced by NASA in 2005, obtained after 3 months of photo shoots from the two satellites Terra and Aqua. The images of the t...

Leave a Reply


Articles Email Notification:
If you'd like to receive an email notification for each new article, enter your email address here
Who's Online
1 visitors online now
Search in Tecnics