https://www.seneedham.com/blogs/news/solar-eclipse-sun-moon-will-align-to-create-diamond-ring-effect-on-april-8
Solar Eclipse: Sun, Moon Will Align to Create 'Diamond Ring Effect' on – S.E. Needham Jewelers
The “Diamond Ring Effect,” which was first explained by Francis Baily in 1836, occurs when the moon completely masks out the sun during a total solar eclipse....
diamond ring effectsolar eclipsesun moonto createalign