Share this entry
photosphere Line breaks: photo|sphere
Pronunciation: /ˈfəʊtəsfɪə/

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
Pronunciation: /fəʊtəˈsfɛrɪk/
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:
Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources