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Photosphere
01
光球
the visible surface of a star, including the Sun, where energy is emitted as light and other forms of electromagnetic radiation
例
The photosphere marks the boundary between a star's opaque surface and its outer atmosphere.
Astronomers study the photospheres of distant stars to determine their temperature and chemical composition.
Solar flares and sunspots often originate from disturbances in the Sun's photosphere.
The temperature of the photosphere of a star like Sirius can reach over 10,000 degrees Celsius.
The photosphere of the Sun appears as a bright, glowing disk when observed with proper solar filters.
