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photosphere

Syllabification: pho·to·sphere
Pronunciation: /ˈfōdəˌsfir
 
/

Definition of photosphere in English:

noun

Astronomy
The luminous envelope of a star from which its light and heat radiate.
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

1
Pronunciation: /ˌfōtəˈsfi(ə)rik, ˈsferik/
adjective
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.

Definition of photosphere in:

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