404meanings Umbra vs Antumbra CompareCite Share
Umbra vs Antumbra The short answer
The antumbra begins where the umbra's cone tapers to a point and ends. Inside the umbra the Moon covers the Sun entirely, giving a total eclipse; inside the antumbra the Moon is too small to cover it, so a ring remains. Same geometry, one distance apart.
Last updated 5 Sept 2026 · 4 differences
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01 Side by side02 Which you meant03 Both in full01 Side by side 02 Which you meant 03 Both in full
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Comparison sheet
Umbra vs Antumbra
Aspect Umbra Antumbra Sun is Fully covered Ringed Eclipse type Total Annular Position Before the cone's tip Beyond it Moon appears Larger than Sun Smaller
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