What is the difference between the Scattered Disk and the Oort Cloud. Is there a clear boundary between the two?What is the difference between the Scattered Disk and th Oort Cloud?
The Oort Cloud is an immense spherical cloud of comets, asteroids and meteors, surrounding our Solar System. Extending about 30 trillion kilometers (18 trillion miles) from the Sun the Oort cloud is believed to be the source of many comets.
Models by Julio 脕ngel Fern谩ndez (See wikipedia links below) suggest that the scattered disc, which is the main source for periodic comets in the Solar System, might also be the primary source for Oort cloud objects. According to the models, about half of the objects scattered travel outward towards the Oort cloud, while a quarter are shifted inward to Jupiter's orbit, and a quarter are ejected on hyperbolic orbits. The scattered disc might still be supplying the Oort cloud with material. A third of the scattered disc's population is likely to end up in the Oort cloud after 2.5 billion years.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment