Question

Write a short note on comets.

Answer 1

Comets are dusty snowballs which orbit the Sun. The inside of a comet is the small solid part called the head and a glowing gaseous outer cloud called the coma. The coma spreads out in the form of a long tail when the comet approaches the sun. Comets can be spotted from the earth when they come close to Sun. But as the comets have very long orbits, they take a very long time to return ranging from a few years to a few thousands of years. Example: Halley’s Comet approaches Sun once in every 76 years.