planetary nebula
English
Etymology
Coined by William Herschel because of their apparent resemblance to the planet Uranus.
Noun
planetary nebula (plural planetary nebulas or planetary nebulae)
- (astronomy) A nebulosity surrounding a dying star, consisting of material expelled by the star.
Synonyms
- PN (abbreviation)
Derived terms
Translations
nebulosity
|
|
See also
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.