单词	photosphere
释义	photosphere /ˈfəʊtəsfɪə / noun Astronomy The luminous envelope of a star from which its light and heat radiate.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 /fəʊtəˈsfɛrɪk/ adjective ... 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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