planetary nebula

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English[edit]

Etymology[edit]

Coined by William Herschel because of their apparent resemblance to the planet Uranus.

Noun[edit]

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planetary nebula (plural planetary nebulas or planetary nebulae)

  1. (astronomy) A nebulosity surrounding a dying star, consisting of material expelled by the star.

Synonyms[edit]

  • PN (abbreviation)

Derived terms[edit]

See also[edit]

Translations[edit]