Comets_and_Asteroids (1) - Comets and Asteroids...

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Comets and Asteroids 1. Describe the following parts of a comet: a. Nucleus – Solid middle part of the comet. Made of rock dust and ice b. Coma – Around the nucleus of the comet. Formed when the comet goes near the sun. c. Dust tail – The trail of dust that follows behind a comet d. Ion (gas) tail – When solar wind passes by the comet. e. Hydrogen Cloud – Cloud of hydrogen atoms surrounding the comet. 2. What direction do the comets tails always point? Away from the sun. 3. How long can the tails of comets become? Between 1 and 10 kilometer 4. What type of orbit do comets have? Comets have an orbit going around the sun 5. What is the name of the only impact comet in recent history? What planet did it hit? Shoemaker and Jupiter 6. What is the difference between long-term and short-term comets? Long term Comets orbit for over 200 years. Comets that orbit for under 200 years. 7. How old will you be when Halley’s comet returns? 59 8. Will you be alive to see the return of Hale-Bopp? No way… unless scientists form a
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