j9

The ,Barcelona soccer jerseysdefinition of planet has comprised many different things. Over the millennia, use of the term was never strict and its meaning has blurred to include or exclude a variety of objects. By the end of the 19th century,Cheap Christian Louboutin Shoes, the word planet had settled into a comfortable working term. It applied only to objects in the Solar System; a number small enough that any differences could be dealt with on an individual basis. After 1992 however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets,Christian Louboutin Shoes, but expanded their variety and peculiarity. The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body larger than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union released its decision on the matter. This definition,louboutin shoes, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round,louboutin for sale, and has "cleared its neighbourhood" of smaller objects around its orbit. Under this new definition, Pluto, along with the other trans-Neptunian objects, does not qualify as a planet.