what is the oort and were is it located
http://www.solarviews.com/eng/oort.htm
http://en.wikipedia.org/wiki/Oort_cloud
The Oort Cloud is a theoretical region in space that is believed to be the outermost part of our solar system. It is named after the Dutch astronomer Jan Oort, who suggested its existence in the 1950s. The Oort Cloud is thought to be a spherical shell of icy objects that surrounds the Sun, extending much farther than the farthest known planet, which is Neptune.
The exact location of the Oort Cloud is not known with certainty because it is extremely distant and its existence has not yet been confirmed through direct observation. However, it is believed to start at a distance of about 2,000 astronomical units (AU) from the Sun. One astronomical unit is the average distance from Earth to the Sun, which is about 93 million miles.
To understand the location and nature of the Oort Cloud, astronomers rely on indirect evidence from the behavior of very distant comets, which are believed to originate from the Oort Cloud. Their long, elongated orbits suggest that they come from a distant, spherical reservoir of comets.
In summary, while the exact location of the Oort Cloud cannot be pinpointed definitively, it is believed to be a vast, distant shell of icy objects surrounding our solar system.