Definition of photosphere in English:

photosphere

Line breaks: photo|sphere
Pronunciation: /ˈfəʊtəsfɪə
 
/

noun

Astronomy
  • The luminous envelope of a star from which its light and heat radiate.
    More example sentences
    • The trip from the radiation zone to the photosphere - the yellowish-white sphere of light that we see - takes about one week.
    • The rotated elliptical shell could explain the polarization angle, but failed to match a feature in the supernova's flux that suggested an uneven absorption of light from the photosphere.
    • Observing the solar photosphere in white light is traditionally carried out with neutral density filters.

Derivatives

photospheric

Pronunciation: /-ˈsfɛrɪk/
adjective
More example sentences
  • We can, however, extrapolate the photospheric magnetic field into the corona.
  • We investigate the dynamics of and the relations between small-scale penumbral and photospheric features near the outer penumbral boundary.

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