Pluto – no more a Planet in our solar system

Posted on by

Yeah, I heard the news long back, but didn’t quite read the reasons for taking Pluto out of the planets of Solar System. Thanks to Fraser Cain to posting this one. It was so informative. Just copying the important point in his article why Pluto was deplanetized:

"For an object to be a planet, it needs to qualify in three categories:

  • It needs to be in orbit around the Sun – Pluto… check
  • It needs to have enough gravity to pull itself into a spherical shape – Pluto…check
  • It needs to have "cleared the neighborhood" of its orbit – Pluto… nope.

What does "cleared its neighborhood" mean? As planets form, they become the dominant gravitational body in their orbit in the Solar System. As they interact with other, smaller objects, they either consume them, or sling them away with their gravity. Pluto is only 0.07 times the mass of the other objects in its orbit. The Earth, in comparison, has 1.7 million times the mass of the other objects in its orbit."

Bye bye Pluto. I’m sure everyone will miss you as a planet, but don’t worry, you are still with us – the solar system residents.

Source : http://www.universetoday.com/2008/04/10/why-pluto-is-no-longer-a-planet/

2 thoughts on “Pluto – no more a Planet in our solar system”

  1. Hi,Do you have second hand lcds, used laptop lcds and used LCD displays? Please go here:www.sstar-hk.com(Southern Stars).We are constantly buying re-usable LCD panels.We recycled LCDs.The re-usable panels go through strictly designed process of categorizing, checking, testing, repairing and refurbishing before they are re-used to make remanufactured LCD displays and TV sets.Due to our recent breakthrough in testing and repairing technology of LCD, we can improve the value for your LCD panels.
    website:www.sstar-hk.com[cbhcejfhjefcg]

    Reply ↓

  2. Hi,Do you have used LCDs, second hand LCDs, used flat screens and used LCD monitors? Please go here:www.sstar-hk.com(Southern Stars).We are constantly buying re-usable LCD panels and working for LCD recycling.The re-usable panels go through strictly designed process of categorizing, checking, testing, repairing and refurbishing before they are re-used to make remanufactured LCD displays and TV sets.Due to our recent breakthrough in testing and repairing technology of LCD, we can improve the value for your LCD panels.
    website:www.sstar-hk.com[cebcchchdhhdde]

    Reply ↓

Leave a comment