SOLAR SYSTEM

Detailed explanation-1: -The coma and the nucleus together form the comet’s head. Comets follow a regular orbit around the Sun.

Detailed explanation-2: -The coma is the nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun on its highly elliptical orbit; as the comet warms, parts of it sublimate. This gives a comet a “fuzzy” appearance when viewed in telescopes and distinguishes it from stars.

Detailed explanation-3: -The nuclei of most comets are believed to range from 1-10 kilometers (. 6-6 miles) in diameter. The coma is a cloud of gases that surrounds the nucleus of a comet. In some comets, a cloud of hydrogen gas surrounds the coma.

Detailed explanation-4: -As comets travel close to the Sun, the Sun’s heat begins to vaporize the ices and causes them to form a fuzzy, luminous area of vaporized gas around the nucleus of the comet known as a coma. Outside the coma is a layer of hydrogen gas called a hydrogen halo which extends up to 1010 meters in diameter.

Detailed explanation-5: -The coma is a large, dusty atmosphere surrounding the nucleus, made up of sublimated gas mixed with dust. The tail consists of gas and dust that can extend hundreds of millions of kilometers away from the coma.