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Solar_and_Lunar_Eclipses1.ppt

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There are two types of eclipses: lunar eclipses, which occur when the moon passes into Earth's shadow, and solar eclipses, which occur when the moon passes between Earth and the sun. Lunar eclipses can be total, partial, or penumbral depending on how far into Earth's shadow the moon passes. Solar eclipses can be total, partial, or annular depending on the moon's position in its orbit. Eclipses do not occur daily because the moon's orbit is tilted relative to Earth's orbit around the sun, so the three bodies do not align perfectly most months.

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Solar and Lunar Eclipses
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.
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 Earth and casts a shadow on part of Earth (New Moon)
Lunar Eclipses The Earth moves between the Sun and the Moon, blocking th Suns light, and causing the moon to glow red.
Umbra The dark inner portion of the shadow cone. Penumbral the lighter outer portion of the shadow.
Types of Lunar Eclipses Total Lunar Eclipse when the Moon passes completely into the Umbra, or total shadow of the Earth. Partial Lunar Eclipse Occur when the Moon does not fully move into the Umbra. Penumbral Lunar Eclipse When the moon passes only through the penumbra, or partial shadow. They are barely visible.
Total Lunar Eclipse when the Moon passes completely into the Umbra, or total shadow of the Earth.
Partial Lunar Eclipse Occur when the Moon does not fully move into the Umbra
Penumbral Lunar Eclipse When the moon passes only through the penumbra, or partial shadow. They are barely visible.
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 the penumbra 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.
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 if you are in the penumbra 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.
How often do Eclipses Happen? That depends!! Lunar Eclipses happen more often 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 same place only sees a Solar Eclipse every 350 years!!
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.
Eclipse Seasons Syzygy- The times where the Moon, the Earth, and the Sun line up perfectly for an eclipse.

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Solar_and_Lunar_Eclipses1.ppt

  • 1. Solar and Lunar Eclipses
  • 2. 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.
  • 3. 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 Earth and casts a shadow on part of Earth (New Moon)
  • 4. Lunar Eclipses The Earth moves between the Sun and the Moon, blocking th Suns light, and causing the moon to glow red.
  • 5. Umbra The dark inner portion of the shadow cone. Penumbral the lighter outer portion of the shadow.
  • 6. Types of Lunar Eclipses Total Lunar Eclipse when the Moon passes completely into the Umbra, or total shadow of the Earth. Partial Lunar Eclipse Occur when the Moon does not fully move into the Umbra. Penumbral Lunar Eclipse When the moon passes only through the penumbra, or partial shadow. They are barely visible.
  • 7. Total Lunar Eclipse when the Moon passes completely into the Umbra, or total shadow of the Earth.
  • 8. Partial Lunar Eclipse Occur when the Moon does not fully move into the Umbra
  • 9. Penumbral Lunar Eclipse When the moon passes only through the penumbra, or partial shadow. They are barely visible.
  • 10. 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 the penumbra 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.
  • 11. Total Solar Eclipse can only occur if you are at the exact spot within the moons umbra (which isnt very big).
  • 12. Partial Solar Eclipse Visible if you are in the penumbra of the shadow. Only some of the moon will be shadowed.
  • 13. 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.
  • 14. How often do Eclipses Happen? That depends!! Lunar Eclipses happen more often 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 same place only sees a Solar Eclipse every 350 years!!
  • 15. 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.
  • 16. Eclipse Seasons Syzygy- The times where the Moon, the Earth, and the Sun line up perfectly for an eclipse.