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well u see comets could be bigger than others but also small ones burn up in the atmosphere making themm nothing like so: muduim comet + atmmospher = small comet big comet + atmosphere = medium comet oh SHlT is that god!? comet + atmosphere = big comet and super duper craz------- well u get the idea
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoThe orbits of comets are elongated ovals that take the comet around the sun and then far out beyond Pluto. We can see them only in that part of their orbit which brings them close to the Earth
Wiki User
∙ 11y agoComets are small bodies of rock and ice which are in a highly eccentric orbit around the sun. They spend most of their time slowly orbiting the sun, far out beyond the outer planets. Their size and brightness at this point make them impossible to see.
Their orbit eventually brings them closer to the sun where they can then be seen more easily as the sun heats the surface and causes gas and dust to come away from the comet, making a huge dust tail and a gas tail which is then lit up by the sun.
Wiki User
∙ 6y agoThey have orbits around the sun that are really big, which takes them years to do a full round.
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Why can you only see the comets when they are near the sun?
At least with the naked eye, yes. Comets can become visible around the time they pass the orbit of Mars, though on its own a comet-sized object would not be visible to the naked eye anyway. However, it is possible to spot such objects with advanced telescopes.
When was last comet last seen?
As objects visible to astronomers with telescopes, it is a rare time when some comet is not visible in the sky, at some place in the world. But as far as large, naked-eye comets, the last one was Comet Hale-Bopp, which reached maximum brightness in April of 1997. It will not return for about 2500 years. New comets are being discovered all the time, but there is no way to predict when or if a large, naked-eye comet will be seen again. We are reasonably sure of the return of Comet Halley, but that will next be in 2061.
What are comets and meteors made of?
Comets and meteors are made of rocks and boulders same as on earth. But since they are in space for a long time, they might have some differences, little differences.
Does a comet go around the sun?
Most comets travel around the Sun in elliptical paths. The time it takes a comet to make a complete orbit is called its period. Some comets have short periods of less than seven years. Others travel in such huge orbits that they pass near the Sun only once in thousands or even millions of years. As of 1995, 878 comets have been catalogued and their orbits at least roughly calculated. Of these 184 are periodic comets (orbital periods less than 200 years); some of the remainder are no doubt periodic as well, but their orbits have not been determined with sufficient accuracy to tell for sure. No comets seem to have approached the Sun from beyond the limits of the solar system. Therefore, all comets seen by astronomers are considered part of the solar system.
What are the release dates for Comets Time Capsules of the Solar System - 1981?
Comets Time Capsules of the Solar System - 1981 was released on: USA: 1981
Are there currently any visible comets in your solar system?
There are no visible comets at this time.
How many comets are seen in 30 years?
There is no set number, because new comets are discovered all the time. Not all comets that are discovered will be visible with the naked eye.
Why can you only see the comets when they are near the sun?
At least with the naked eye, yes. Comets can become visible around the time they pass the orbit of Mars, though on its own a comet-sized object would not be visible to the naked eye anyway. However, it is possible to spot such objects with advanced telescopes.
When was last comet last seen?
As objects visible to astronomers with telescopes, it is a rare time when some comet is not visible in the sky, at some place in the world. But as far as large, naked-eye comets, the last one was Comet Hale-Bopp, which reached maximum brightness in April of 1997. It will not return for about 2500 years. New comets are being discovered all the time, but there is no way to predict when or if a large, naked-eye comet will be seen again. We are reasonably sure of the return of Comet Halley, but that will next be in 2061.
What are comets and meteors made of?
Comets and meteors are made of rocks and boulders same as on earth. But since they are in space for a long time, they might have some differences, little differences.
When is the next time a coment will be visible from the earth?
There are comets visible all the time, but they are generally so small or so distant that few people other than amateur comet watchers ever see them. When will the next big, impressive comet be visible? Nobody knows; that's why hundreds of comet watchers spend their nights in home observatories looking for new comets. Guessing how impressive a comet is going to be from early observations is also difficult, because one never knows the exact composition of a comet. Every one is different, and they all have surprises.
Why can't you see comets in the night sky all of the time?
Because there aren't always comets!
What happens to the water in comets as they orbit the sun?
If they get close enough to the Sun - which is when they are best visible - the water will gradually evaporate; the comet will disintegrate within a very short time (perhaps a few thousand years).
Does a comet go around the sun?
Most comets travel around the Sun in elliptical paths. The time it takes a comet to make a complete orbit is called its period. Some comets have short periods of less than seven years. Others travel in such huge orbits that they pass near the Sun only once in thousands or even millions of years. As of 1995, 878 comets have been catalogued and their orbits at least roughly calculated. Of these 184 are periodic comets (orbital periods less than 200 years); some of the remainder are no doubt periodic as well, but their orbits have not been determined with sufficient accuracy to tell for sure. No comets seem to have approached the Sun from beyond the limits of the solar system. Therefore, all comets seen by astronomers are considered part of the solar system.
What are the release dates for Comets Time Capsules of the Solar System - 1981?
Comets Time Capsules of the Solar System - 1981 was released on: USA: 1981
Why do astronomer believe they can learn about the early earth by studying comets?
Because comets were created about the same time as the Earth.
Why are comets not seen both the time on going towards sun and away from it?
They are. We generally first see comets as they approach the Sun and become visible; if the comet survives the near approach to the Sun, we can continue to see them as they move away from the Sun. Depending on the comet's orbit as compared to the Earth's, we sometimes can't see the comet very well until after it is already moving away from the Sun. And of course, the first three comets discovered in 2010 were all discovered by satellites watching the Sun - as the comets fell INTO the Sun.
