In this article
Why the Sun becomes a ring
The Moon's orbit is slightly oval, so its distance from Earth changes. When a New Moon lines up with the Sun while the Moon is far from us, it appears a little smaller than the Sun's disc. It covers the middle but cannot reach the edge, and a ring of sunlight, the annulus, remains visible.
The word comes from the Latin for ring. The ring appears only along a narrow path on Earth, the same kind of track as for a total solar eclipse, and outside it observers see a partial eclipse.
What it looks like
- Gradual dimming. The Sun shrinks to a crescent over an hour or so, but it never gets truly dark.
- The annular phase. A glowing ring surrounds the black disc of the Moon for as long as several minutes.
- Odd light. The landscape takes on a metallic, silvery look and shadows turn razor sharp.
- No corona. Because so much of the Sun stays uncovered, you will not see the pale outer atmosphere seen at totality.
Why glasses must stay on
This is the most important point: during an annular eclipse there is never a safe moment to look without protection. The ring is still the bright surface of the Sun, and it can injure your eyes even though it looks smaller and the day seems only dimmed.
Use glasses certified to ISO 12312-2, or watch indirectly with a pinhole projector. Binoculars, telescopes and cameras need a solar filter on the front, even while you wear eclipse glasses. The safety guide covers every method, including what to avoid.
Hybrid eclipses and where to find paths
A few eclipses are hybrids. Because Earth's surface curves, the Moon can look large enough to cover the Sun in part of the track and too small elsewhere along it, so the eclipse shifts between annular and total.
Paths for the annular eclipses in the table are published by astronomy observatories along with local times. Visibility depends on where you stand, so look up your own location before planning a trip.
In tradition
The shining ring has inspired nicknames and poetry, and astrologers read it as a symbol of a cycle closing around a central point. Treat that as imagery, not prediction. The eclipses hub has the overview of all six types.
Questions people ask
Is an annular eclipse safe to watch?
Only with proper solar protection. Keep ISO 12312-2 eclipse glasses on for the whole event, because unlike totality there is no moment when the Sun is fully covered.
Why is it called a ring of fire?
It is a nickname for the bright ring of sunlight left around the Moon. The ring is only the Sun's own surface and is not fire in any literal sense.
Does the sky go dark?
Not much. Most of the Sun remains uncovered, so daylight dims noticeably but does not fall to twilight as in a total eclipse.