Asteroids and comets are both celestial bodies and have few things in similarity like they orbit around the Sun, unusual orbits, staying close to planets. The are believed to know as leftovers from the materials of solar system formation billions of years ago.
The major difference between asteroids and comets is what they consist of. The asteroids is composed of rocky material and metals, while the comets include rocky materials, dust, ice and organic compounds. Comets often get close to the Sun and composed materials dissolves like ice melts and gets vapored. On the other hand, asteroid remain rock solid.
Asteroid orbit the Sun and are small bodies on solar system. They are made up of metals and rocks and also consists of organic compounds. They are similar to comets but don’t have a coma like comets.
Comets also orbits the Sun and are relatively small bodies of solar system. When comets are closer to the Sun they display a coma or a tail due to the solar radiation.
|Asteroid And Comet Difference and Comparison Chart|
|Asteroids have elliptical orbit||Comets have eccentric orbit.|
|It is made of metals and rocks||Made of rocks, hydrocarbons and ice|
|Do not produce a coma or tail atmosphere||Thin, temporary atmospheric tail when close to the Sun.|
|The orbital period is 1 to 100 years||The orbital periods is 75 to more than 100,000 years.|
|1 to larger than 100 kilometer in size||1 to 10 kilometer in size (nucleus only)|
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