What two parts of the suns out layer are only visible from earth during a solar eclipse?

During a solar eclipse, the two parts of the Sun's outer layer that are only visible from Earth are the corona and the chromosphere. The corona is the Sun's outer atmosphere, appearing as a halo of plasma, while the chromosphere is a thin layer above the photosphere that can show a reddish hue. Both are obscured by the Sun's bright light except during the brief moments of a total solar eclipse.