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Definisjon av photosphere

Vi fant 3 definisjoner av photosphere på engelsk.

Annonsering

WordNet WordNet by Princeton University

Noun
photosphere - the intensely luminous surface of a star (especially the sun)
surface the outer boundary of an artifact or a material layer constituting or resembling such a boundary; "there is a special cleaner for these surfaces"; "the cloth had a pattern of red dots on a white surface"
= synonym
= antonym
= relatert ord

Wiktionary Wiktionary dictionary logo

Substantiv
photosphere - A visible surface layer of a star, and especially that of a sun.

Wikipedia Wiktionary dictionary logo

  • The photosphere of an astronomical object is the region from which externally received light originates. The term itself is derived from Ancient Greek roots, φῶς, φωτός/phos, photos meaning "light" and σφαῖρα/sphaira meaning "ball," in reference to the fact that it is a ball-shaped surface perceived to emit light. It extends into a star's surface until the gas becomes opaque, equivalent to an optical depth of approximately 2/3.

Substantiv

  • Entall: photosphere
  • Flertall: photospheres

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