Comets. We think.
Let's be clear about this; the "Oort cloud" is entirely THEORETICAL. It makes perfect sense that there must be SOMEPLACE that comets are coming from, since it's impossible that the same comets have been swooping past the Sun for the last 4.5 BILLION years. But as of yet, we have no actual EVIDENCE of the area known as the Oort Cloud. Nor, given the distances involved, is it even possible for us to GET the evidence given our current technology.
As scientists, we can be fairly confident that when we get out there, either in person or by robot, we'll find a vast area with a few billion speckles of dirt, rocks, ice - you know, comet stuff. Then we will have some evidence that the Oort cloud theory is correct. But we're not there yet.
The Kuiper Belt, a theorized area far beyond Neptune. There are actually two "shells" of debris around the Solar System. The Kuiper Belt is beyond Neptune, and the Oort Cloud is believed to be beyond that.
Short period comets are thought to originate in the Kuiper Belt, outside the orbit of Neptune.Long period comets originate in the Oort Cloud, which is far more distant, about half way to the nearest star!Comets, as with any astronomical body, can have its orbit perturbed (changed) by external gravitational forces. Long period comets can become short period and vice versa. The orbits can range from a few tens of years to many thousands, some can even escape altogether.
Comets are fairly small bodies of rock and ice which are in a highly eccentric orbit around the sun. The actual nucleus of a comet can be between a few hundred metres across, to 40 or more km in diameter. Their mass is quite low, but their density is also quite low as they are mostly made of water ice and frozen gases. They spend most of their time slowly orbiting the sun, far out beyond the outer planets (and way beyond the asteroid belt). Their orbit eventually brings them close to the sun, where the surface is heated and gives the comet its tails.
Yes. Jove is the one of the alternate names for the Roman chief god Jupiter, so "jovian" means "Jupiter-like". The four "gas giant" planets, Jupiter, Saturn, Uranus and Neptune, all are further from the Sun than Mars is.
If they are in the atmosphere (low earth orbit), satellites are in the ionosphere. If they are in higher orbits, satellites are considered to be outside the atmosphere.
commet
The asteroid belt is in between the orbit or Mars and Jupiter. The Oort cloud is beyond the orbit of Neptune.
The Kuiper Belt, a theorized area far beyond Neptune. There are actually two "shells" of debris around the Solar System. The Kuiper Belt is beyond Neptune, and the Oort Cloud is believed to be beyond that.
No. The Oort cloud is way beyond the orbit of Saturn. It's where many of the comets come from.
Most of them are moving slowly out beyond the orbit of Neptune, in the kuiper belt. Longer term comets are thought to also be as far out as the Oort cloud.
Comets are believed to have originated from asteroids in a sort of 'cloud', called the 'Oort Cloud'. It is thought all comets come from the Oort Cloud, which is a cloud of asteroids beyond the Kuiper Belt beyond Neptune. When one asteroid is knocked off from its orbit from the Oort Cloud, it makes really long trips around the Sun, which is why it becomes a comet. All of the asteroids in the Oort Cloud have some type of ice on them, since they are so far away from the sun that everything in the Oort Cloud seems to freeze.
Any object with greater mass than another can cause the lesser object to orbit it. Most of our comets come from the Oort Cloud, beyond Pluto, and they orbit our Sun.
The Kuiper belt lies beyond the orbit of Neptune and is composed of lots of rocks and asteroids. The hypothesised Oort cloud lies beyond that.
At least two very big things: the Kyper Belt beyond the orbit of Neptune, and farther out, the Oort Cloud.
There are some comets near Pluto, amongst the bodies in the "Kuiper Belt". However, I think the answer to this question is the "Oort cloud" of comets, far beyond the orbit of Pluto.
Eris is not an asteroid and it is not located in the asteroid belt; it is a dwarf planet, and it is beyond the orbit of Neptune, in the outer system.
A part of Neptune's orbit extends beyond that of Pluto.