EclipsesEclipses

SOLAR ECLIPSES

• Solar Eclipse- caused by the moon making a small shadow on the Earth.– Moon crosses in front

of the sun.– Moon is in a new

moon position.– Only a small number

of people can see a solar eclipse.

– Occurs during the day.

How does it happen?

SOLAR ECLIPSE

• There are two parts to the shadow.– Umbra- darkest part

– Penumbra- lighter part

• Those people standing in the umbra see a total solar eclipse.

• Those people in the penumbra see a partial solar eclipse.

Eclipse Schematic

Solar Eclipse 2008

When will we see another Solar Eclipse??

LUNAR ECLIPSE

• Lunar eclipse- caused by the earth’s shadow covering the moon.– Earth crosses in the

sun’s shadow.

– Moon is in a full moon position.

– Large numbers of people can see.

– Occurs at night.

LUNAR ECLIPSE

• There are two parts to the shadow- umbra and penumbra.– When the moon is in

the umbra a total lunar eclipse occurs.

– When the moon is in the penumbra a partial lunar eclipse occurs.

Lunar Eclipse 2008

Lunar Eclipse 2008

TidesTides