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What is the diameter of the Oort cloud?
The Oort cloud is estimated to extend from 2,000 to 100,000 astronomical units (AU) from the Sun. This vast distance means that the diameter of the Oort cloud can range from about 0.03 to 1.5 light-years.
The Oort Cloud is believed to be?
The Oort Cloud is believed to be a vast spherical region of icy debris extending far beyond the orbits of Neptune and Pluto. It is thought to be the source of long-period comets that occasionally enter the inner solar system.
Where is the Oort cloud located in space?
The Oort Cloud is a hypothetical sphere of comets left over from the birth of the solar system. It is named after the scientist who proposed its existence, and lies in a loose orbit far outside our Solar System. Although it has never been directly observed (because its constituents are too small and too far away for telescopes to detect) it is thought to be the source of the long period comets in the Solar System. Its existence can be inferred because the aphelia of long period comets tend be the same, suggesting they originated in some "reservoir" far outside our solar system. See the link for a very good description of the Oort Cloud and more info.
How far is the orrt cloud away from earth?
The Oort Cloud is a vast spherical shell of icy objects that lies far beyond the furthest reaches of our solar system, approximately 0.5 to 3 light-years away from Earth. This puts it at an estimated distance of about 30,000 to 190,000 astronomical units (AU) from the Sun.
Whats the angular size of long thin cloud that is stretched straight over head to the horizon would have?
The angular size of the cloud would depend on its length and how far it extends from directly overhead to the horizon. Assuming the cloud is very long and extends all the way to the horizon, it would have a wide angular size approaching 180 degrees when looking from directly underneath it.
