What specific type of stellar object sits at the center of a planetary nebula?
Answer
A white dwarf, which is the hot, dense core left behind after a star sheds its outer layers
The central point observed within a planetary nebula is a white dwarf. This object serves as the core of a star that has completed its life cycle. After the star runs out of fuel and sheds its outer layers of gas and dust into space, the exposed core remains. This core is characterized by its high density and heat, acting as the engine that powers the surrounding nebula by providing the radiation necessary to make the ejected gas visible.
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