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Solar and Lunar Eclipses
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What is an eclipse?
An eclipse occurs any time something passes
in front of the Sun, blocking its light. This can
be the Earth or the Moon.
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Is there more than 1 kind of eclipse?
Yes!! There are lunar and solar eclipses.
Lunar Eclipse- When the Earth casts a shadow
on the moon, causing the moon to go dark.
Earth comes between the Sun and the Moon
and casts a shadow on the Moon (Full Moon)
Solar Eclipse- When the Moon casts a shadow
on the Earth, causing the sun to go dark.
The Moon comes between the Sun and Earthand casts a shadow on part of Earth (New
Moon)
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Lunar Eclipses
The Earth moves between the Sun and theMoon, blocking th Suns light, and causing the
moon to glow red.
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Umbra The dark inner portion of the
shadow cone. Penumbral the lighter outer portion of
the shadow.
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Types of Lunar Eclipses
Total Lunar Eclipse when the Moon passescompletely into the Umbra, or total shadow of
the Earth.
Partial Lunar Eclipse Occur when the Moondoes not fully move into the Umbra.
Penumbral Lunar Eclipse When the moon
passes only through the penumbra, or partialshadow. They are barely visible.
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Total Lunar Eclipse when the Moon passes completely
into the Umbra, or total shadow of the Earth.
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Partial Lunar Eclipse Occur when the Moon does not
fully move into the Umbra
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Penumbral Lunar Eclipse When the moon passes only
through the penumbra, or partial shadow. They are
barely visible.
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Types of Solar Eclipses
Total Solar Eclipse can only occur if you are at the
exact spot within the moons umbra (which isnt very
big).
Partial Solar Eclipse Visible is you are in thepenumbra of the shadow. Only some of the moon
will be shadowed.
Annular Eclipse occurs when the moon is farthest
from the Earth in its orbit. This makes the moon look
smaller, so during the eclipse you see an outer ring of
light from the Sun.
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Total Solar Eclipse can only occur if you are at the
exact spot within the moons umbra (which isnt very
big).
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Partial Solar Eclipse Visible if you are in the penumbra
of the shadow. Only some of the moon will be
shadowed.
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Annular Eclipse occurs when the moon is farthest
from the Earth in its orbit. This makes the moon look
smaller, so during the eclipse you see an outer ring of
light from the Sun.
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How often do Eclipses Happen?
That depends!! Lunar Eclipses happen moreoften than Solar Eclipses.
Why? Well everyone who is experiencing
nighttime during a lunar eclipse can see it. But you have to be at the exact spot on Earth
to see a Solar Eclipse.
The spot on Earth is so small, that the sameplace only sees a Solar Eclipse every 350
years!!
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Why Dont We See Lunar
Eclipses More Often?
Well, lunar eclipses dont happen everyday
because the Moons orbit is tilted. So, during
most months, the Moon is above or below the
Earth.
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Eclipse Seasons
Syzygy- The times where the Moon, the Earth,
and the Sun line up perfectly for an eclipse.