What type of radiation excites gas in an Emission Nebula?

Answer

Intense ultraviolet radiation.

Emission nebulae are found near hot, young, massive stars, such as O or B type stars, which emit intense ultraviolet radiation capable of stripping electrons from surrounding hydrogen gas atoms.

What type of radiation excites gas in an Emission Nebula?

#Videos

Nebulae: Crash Course Astronomy #36 - YouTube

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