GENERAL KNOWLEDGE

Detailed explanation-1: -July 2020) The nucleus is the solid, central part of a comet, once termed a dirty snowball or an icy dirtball. A cometary nucleus is composed of rock, dust, and frozen gases. When heated by the Sun, the gases sublime and produce an atmosphere surrounding the nucleus known as the coma.

Detailed explanation-2: -features of comets The nucleus is a solid body typically a few kilometres in diameter and made up of a mixture of volatile ices (predominantly water ice) and silicate and organic dust particles.

Detailed explanation-3: -The solid, centrally located part of the comet is known as the “nucleus". The nucleus is a repository of dust and frozen gases. When heated by the sun, the gases sublimate and produce an atmosphere surrounding the nucleus known as the coma which is later swept into the elongated tail.