The stellar atmosphere is the outer region of the volume of a star, lying above the stellar core, radiation zone and convection zone.
The stellar atmosphere is divided into several regions of distinct character: During a total solar eclipse, the photosphere of the Sun is obscured, revealing its atmosphere's other layers.
[1] Observed during eclipse, the Sun's chromosphere appears (briefly) as a thin pinkish arc,[11] and its corona is seen as a tufted halo.
The same phenomenon in eclipsing binaries can make the chromosphere of giant stars visible.
[12]