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Asteroids
Asteroids, or planetoids, are rocks larger than meteorites but smaller than planets that orbit around the Sun.
1,071 Questions
What is the orbital period of asteroid 12867 Joëloïc?
The orbital period of asteroid 12867 Joëloïc is approximately 3.92 years or 1430 days. It completes one orbit around the sun in this time.
An asteroid can best be described as what?
An asteroid is a small rocky object that orbits the Sun, typically found in the asteroid belt between Mars and Jupiter. They are remnants from the early formation of the solar system and can vary in size from small boulders to objects several hundred kilometers in diameter.
What kind of damage would a large asteroid do to eartth?
This would depend on a number of factors, including:
- The exact mass and size of the asteroid
- Where it hits the Earth
- The trajectory of the asteroid
- The initial velocity of the asteroid
- The density of the asteroid
Potential damage that an asteroid can cause includes:
- Damage from blast waves
- Damage from resulting earthquakes
- Damage from resulting fires
- Damage from tidal waves if the asteroid hits a body of water
Killer asteroids, also known as potentially hazardous asteroids (PHAs), are space rocks that have the potential to collide with the Earth and cause significant damage or even mass extinction. These asteroids are typically larger than 1 kilometer in diameter and follow orbits that bring them close to our planet. However, the term "killer asteroids" is used more in popular culture rather than the scientific community.
Why is it good that most asteroids are in the same plane as the earth?
The fact that most asteroids are in the same plane as Earth, known as the ecliptic plane, is beneficial for a couple of reasons. First, it makes it easier for astronomers to observe and study these asteroids. Second, it reduces the likelihood of catastrophic asteroid collisions with Earth, as they are confined to this plane rather than randomly scattered throughout space. This alignment allows for more efficient monitoring and tracking of these objects.
When will the next mass extinction occur?
This is answers.com, not the psychic network.Nobody knows. Various people have predicted various things, but until one of them happens, we won't know for sure.
At one time it was believed that mass extinctions were periodic, and some analyses suggested we were about due for one ... but as more data has come in, it now looks like the periodicity may have been a statistical coincidence, and that smaller extinction events occur all the time. There was a relatively recent one in the oceans about two million years ago, for example (the last really major one was the K-Pg event 66 million years ago, widely thought to have been caused by an asteroid impact).
How many AU is the asteroid belt away from the sun?
The asteroid belt is located between the orbits of Mars and Jupiter, roughly 2.1 to 3.3 astronomical units (AU) from the Sun. On average, it sits at about 2.7 AU. One astronomical unit is the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers.
How to calculate if an asteroid will hit the earth?
There is essentially no chance of any given asteroid ever hitting the Earth, because those with orbits that made them likely to hit the Earth have already hit the Earth. So it's not something you really need to worry about.
If you're just curious... well, really, you don't want to know that badly. It comes down to solving n-body gravitational equations, and for any reasonably sized n (i.e. larger than, say, 3) there is no known exact solution except in special cases, so you have to use numerical methods and hope the interesting bits don't get lost in rounding errors.
Asteroids orbit the sun at several tens of thousands of miles per hour. The speed varies depending on the orbit.
Do asteroid hurt our atmosphere?
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Asteroids can vary in size from a few meters to hundreds of kilometers in diameter. Some asteroids are small, like pebbles, while others are quite large and can even be classified as dwarf planets. Size is one of the factors used to categorize and characterize asteroids.
Where are most asteroids in our solar system found in space?
Asteroids are found all over the solar system. The vast majority is located in the asteroid belt between the orbits of Mars and Jupiter.
What are the differences between Pluto an a asteroid?
Pluto is technically an asteroid, but it's unusual in that it is ball-shaped. most asteroids are too small to form a ball shape.
Why don't asteroids have atmospheres?
Asteroids are too small to have enough gravity to prevent any atmosphere form escaping.
Could a meteor blow up the earth?
Astronomers estimate between 36 and 166 meteorites larger than 10grams fall to Earth per million square kilometres each year. Over the whole surface area of Earth, that translates to 18,000to 84,000meteorites bigger than 10grams per year. But there is no confirmed evidence of anyone having died from a meteorite strike.
On the other hand, it is thought that a meteorite strike was responsible was the mass extermination which led to the end of the dinosaurs.
What is the distance between asteroid Belt and the sun?
This is known as the Asteroid belt. Its mainly smaller bodies, but there are a few big asteroids in there also. The biggest object there is known as Ceres. Its about 1000km in diameter, and now classed as a dwarf planet.
Will there be another mass extinction in the future?
It is unlikely that you will meet anyone who will live to see a mass extinction on earth. Inevitably yes, if we're talking millions of years then of course "nothing lasts forever." It is a bit bullheaded for someone to think that their generation is lucky enough to witness the end of all things. It's a hard question to answer realistically without sounding like a doomsdayer, but some biologists think we are already in one. Some even say that species are disappearing at a faster rate today than they were following the meteor impact 65 million years ago. Millions of species have been lost through deforestation,particularly of tropical rainforest, which support most of the world's species.Around half of the world's forest is already cleared. In the oceans,species such as the Atlantic cod are close to collapse, and were incredibly abundant only 200 years ago.Our population is exploding and now global warming has been added to the mix.Yes, the Earth is in danger of another mass extinction.
What is the radius of asteroid vesta?
The mean radius of the asteroid Vesta is about 262.7 kilometers (163.2 miles).
Does an asteroid have holes in it?
Some asteroids have natural cavities or depressions on their surface, but they are not typically "holes" in the sense of having passageways through them. These features can be caused by impacts or the gravitational forces acting on the asteroid.
What can you see in the sky an asteroid a comet or a meteor?
If you land a space ship on a comet or asteroid, then you can touch those (at great peril); meteorites are meteors that have struck the Earth, so you can touch those here on Earth with much less peril.
