类别 全部 - solar

作者:SU - 06SK 783728 Ruth Thompson MS 3 年以前

318

celestial body

Meteors, also known as shooting stars, are fragments from asteroids and comets that can vary in size and are found primarily in the asteroid belt. When they collide with Earth's surface, they are termed meteorites, with only a small fraction being used for scientific research.

celestial body

celestial body

Main topic

comets

the size can come up to 150 000 000km
burns out after several thousand years
when a comet travels towards the sun the radiation makes the tail look like ts behind its self
tail looks like its going the other way when traviling away from the sun
doesnt produce own light
made of dust and ice
core is a rock

asteroids

asteroids are leftovers of the dust thing that collapsed under its own fat weight to form the solar system
travels around the sun at a average speed of 25km
size varies from one meter to 1000 meters wide
known as mini planets

meteors

meteors are actually shooting stars
500 meteorites reach the earths surface every year

only six go to scientists for their studies

meteors are called meteorites when they collide with the earths surface
found in the asteroids belt
size varies
is a floating piece of stone and metal
fragments of asteroids and comets

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