Eclipse- when the shadow of one celestial body falls on another

celestial- Latin word for ‘heaven’

Solar eclipse

This happens when the Moon comes between Earth and the Sun. The shadow of the moon falls on part of Earth.

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Penumbra – Faint outer shadow; partial eclipses are seen from within this shadow

Umbra- Dark inner shadow; total eclipses are seen from within this shadow.

The Moon's shadow actually has two parts:

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Lunar eclipse

This happens when the Earth comes between the Sun and the Moon. The shadow of Earth falls on the Moon.

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Total lunar eclipse January 2000

Total lunar eclipse October 2004

1999 eclipse sequence