planetary nebula nucleus

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English[edit]

Etymology[edit]

planetary nebula +‎ nucleus

Noun[edit]

planetary nebula nucleus (plural planetary nebula nuclei)

  1. (astronomy) The remnant hot luminous core of the stellar progenitor of the planetary nebula, which ionizes the surrounding planetary nebula.

Synonyms[edit]

  • PNN (abbreviation)

Derived terms[edit]

  • PNN (abbreviation)
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