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OrbitLab
Why some eclipses have a 'ring of fire.'
The Sun is about 400× wider than the Moon but also about 400× farther away, making their angular sizes in our sky nearly identical — this coincidence is exactly why total solar eclipses, where the Moon precisely covers the Sun, are even possible.
The Moon's orbit is elliptical, so its distance (and angular size) varies slightly — when the Moon is near its farthest point (apogee) during an eclipse, it appears too small to fully cover the Sun, leaving a bright ring: an annular eclipse.
Molar mass of any chemical formula (e.g. H2O, C6H12O6, Ca(OH)2).
OpenPercent composition of an element within a chemical formula.
OpenSimplest whole-number ratio formula from elemental masses or percentages.
OpenPercent yield from actual and theoretical reaction yields.
OpenEclipse type
Annular eclipse (ring of fire)
What you entered
Sun's angular size
(1391000 ÷ 149600000) × (180/π)= 0.5327°Moon's angular size
(3474 ÷ 384400) × (180/π)= 0.5178°Comparison
Moon vs Sun angular size= Annular eclipse (ring of fire)Result
Eclipse type: Annular eclipse (ring of fire)
With these angular sizes, a annular eclipse (ring of fire).