A full Moon looks about as wide as the Sun in our sky
The Sun’s diameter is about 400 times the Moon’s, but it also sits about 400 times farther away. Those twin ratios make their disks look nearly the same size from Earth.
That coincidence is why total solar eclipses can blot out the photosphere so neatly. If the Moon were a little smaller or farther, we would only ever see rings of fire.
A matching silhouette is not destiny — just lucky geometry for our era. As the Moon drifts outward, perfect total eclipses will grow rarer.
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