because the moon comes in middle of the earth and sun
The visible light around the rough Moon surface during a solar eclipse is caled Baily's Beads.
CORONACORONA
corona
chromosphere
Sometimes, during a total solar eclipse, the corona of sun is visible to our eyes.
During a complete solar eclipse (In which neither the sun or moon is visible) the moon is in front of the sun, blocking its light from the earth.
The solar corona, or upper atmosphere, is only visible during a solar eclipse.
Corona
The bright light from the Sun overpowers the faint light from the stars but during a solar eclipse when the light from the Sun is block the stars and constellations become visible.
The red ring that is visible around the darkened disk of the Moon during a total solar eclipse is called the solar corona. It is the outermost layer of the Sun's atmosphere, composed of superheated plasma. The corona is usually invisible due to the overwhelming brightness of the Sun, but during a total solar eclipse, it becomes visible as a beautiful halo of red or white light.
The corona, or filaments of gas streaming off the sun are most visible during an eclipse.
There were partial solar eclipses visible from Phoenix including a 71% eclipse on April 7, 1940. There were no total solar eclipses visible in Phoenix during the 1940's.