EMISSION NEBULA


Meaning of EMISSION NEBULA in English

Astron.

a bright diffuse nebula that emits light as a result of ionization of its gas atoms by ultraviolet radiation, as the Orion Nebula, planetary nebulae, and supernova remnants, as the Crab Nebula.

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .