Sentences with phrase «asteroids of a given size»

Here's how we know: astronomers can estimate how many asteroids of a given size are out there, even if we haven't seen them all, by looking at the rate of re-detection, or how often we see the same asteroid a second time.

Not exact matches

The analysis of the orbital evolution of the meteorite has showed, according to researchers, a «disturbing similarity» with the evolution of 2014 UR116 which, given its size and minimum distance of intersection with the orbit of the Earth, has been classified as a potentially dangerous asteroid.

If it's any comfort, Chodas explains that the chance of asteroid SG344's colliding with Earth in 2030 is less than the chance that an undiscovered object of the same size will hit Earth in any given year.

Giving the advantage of its high - angular resolving power (~ 7mas), TMT will be able to resolve a dozen large Trans - Neptunian objects and ~ 50 - 100 Trojan asteroids, providing a good estimate of their size.

Given that Tau Ceti does not appear to be a young star, the ring of dusty debris is believed to be produced by collisions between larger comets and asteroids that break them down into smaller and smaller pieces, and Tau Ceti's disk is similar in size and shape to the disk of comets and asteroids that orbits the Sun, Sol.