Description: Es la estructura interna y sólida de un cometa. Se trata de un objeto similar a una bola de hielo sucia, formado por hielo y partículas rocosas y polvorientas. Sus componentes más destacados son: agua, amoníaco, dióxido de carbono, metano y silicatos. Este núcleo cometario cambia cuándo se acerca a su estrella. De allí que los hielos superficiales se subliman formando una especie de atmósfera a su alrededor, conocida como coma, a la vez que pierde materiales rocosos arrojados mientras completa su órbita alrededor de la estrella.

Related Terms:

• Cometary Coma
• Comet
• Cometary Tail

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

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