An annular solar eclipse is a type of solar eclipse where the Moon passes directly in front of the Sun but does not cover it completely, leaving a bright ring of sunlight called a “ring of fire” around the dark Moon.

What it is (in simple terms)

  • During an annular solar eclipse, the Sun, Moon, and Earth line up almost perfectly, just like in a total solar eclipse.
  • The difference is that the Moon is farther from Earth in its orbit (near apogee), so it looks slightly smaller in the sky than the Sun.
  • Because of this smaller apparent size, the Moon cannot block the Sun completely, and a thin, intensely bright ring of sunlight remains visible around the Moon.

Why it forms a “ring of fire”

  • The term “annular” comes from the Latin anulus , meaning “ring,” referring to the glowing circle of sunlight, or annulus, that surrounds the Moon during this eclipse.
  • This dramatic ring-like appearance is what people often call the ring of fire, and it happens only when the alignment is right and the Moon is at the right distance.

How it differs from other solar eclipses

  • Total solar eclipse : The Moon appears large enough to cover the entire Sun, briefly turning day into deep twilight and revealing the solar corona; no bright ring of Sun remains.
  • Annular solar eclipse : The Sun never gets fully covered; even at maximum eclipse, a brilliant ring remains, so the sky darkens but not as dramatically as during totality.
  • Annular eclipses occur roughly every one to two years somewhere on Earth, though any given location sees them far less frequently.

Safety and viewing

  • It is never safe to look directly at the Sun during an annular solar eclipse without proper eye protection, because some of the Sun’s surface is always visible and can damage eyesight.
  • Safe viewing methods include certified eclipse glasses or solar filters, and indirect projection techniques (like pinhole projectors) to watch the changing shape of the Sun.

TL;DR: An annular solar eclipse happens when the Moon passes in front of the Sun while it is too far from Earth to cover the Sun completely, leaving a striking, bright “ring of fire” around the Moon in the sky.

Information gathered from public forums or data available on the internet and portrayed here.