Ion Tail (Gas Tail) - Made of ionized gases, points away from sun (due to solar wind)-, Dust Tail - Made of tiny solid particles pushed away by sunlight pressure, Short-Period Comets - Orbit sun in under 200 years, most from Kuiper Belt, Long-Period Comets - From Oort cloud, take thousands to millions of years to orbit the Sun.,

Comets- Speed Matching

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