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planetary nebula nucleus

noun

planetary nebula nucleus

noun

Etymology From planetary nebula + nucleus.

1

Astronomy, Natural sciences The remnant hot luminous core of the stellar progenitor of the planetary nebula, which ionizes the surrounding planetary nebula.

Synonyms
PNN
Derived terms
PNN

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.