Wolf-Rayet nebulae are a type of astronomical object associated with Wolf-Rayet stars, which are massive stars in a late stage of stellar evolution. These stars are characterized by their strong stellar winds, high temperatures, and distinct spectral lines, particularly of heavy elements such as carbon, nitrogen, and oxygen. When a Wolf-Rayet star evolves and sheds a significant portion of its outer layers through powerful stellar winds, it creates an expansive nebula composed of gas and dust.

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