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Questions and Answers
What is the position of the Earth during a lunar eclipse?
What is the phase of the Moon during a lunar eclipse?
What is responsible for the Moon's reddish color during a total lunar eclipse?
What type of lunar eclipse occurs when the Moon passes through the Earth's partial shadow?
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What is the name given to the Moon during a total lunar eclipse?
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Why did ancient cultures fear the appearance of the Moon during a lunar eclipse?
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What is the primary condition for an eclipse to occur?
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What type of eclipse occurs when the Sun casts a shadow on the Moon?
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What is the phase of the Moon during a solar eclipse?
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Why does a solar eclipse not occur every month?
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What is the term for the area where the Sun is completely blocked by the Moon during a solar eclipse?
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What is the type of solar eclipse where the Moon only partially covers the Sun?
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What is the name of the phenomenon where the Moon's disk appears ring-like around the Sun during a solar eclipse?
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What is the shape of the Moon's orbit around the Earth?
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Study Notes
Eclipse
- An eclipse occurs when the shadow of one body falls on another body.
Types of Eclipses
- There are two types of eclipses: Solar Eclipse and Lunar Eclipse.
Solar Eclipse
- A Solar Eclipse occurs when the Sun casts a shadow of the Moon on Earth.
- The Sun is blocked out by the Moon, and cannot be seen from areas on Earth that lie in the Moon’s shadow.
- Total Solar Eclipse: The disc of the Moon exactly covers the Sun, blocking its light completely.
- Annular Solar Eclipse: The disc of the Moon only partially covers the Sun, occurs when the Moon is slightly further away from the Sun when the eclipse occurs.
Lunar Eclipse
- A Lunar Eclipse occurs when the Earth lies between the Sun and Moon, so that Earth's shadow darkens the Moon.
- The phase of the Moon during a Lunar Eclipse is Full Moon.
- Types of Lunar Eclipses:
- Total Lunar Eclipse
- Partial Lunar Eclipse
- Penumbral Lunar Eclipse
- Partial Penumbral Eclipse
- During a Total Lunar Eclipse, the Moon can appear blood red due to the refraction of sunlight through the Earth's atmosphere.
- The Moon does not totally disappear during a Total Lunar Eclipse, but appears as a dark red color.
Eclipse Shadow Structure
- The Shadow Structure consists of:
- Umbra: The innermost and darkest part of the shadow.
- Penumbra: The lighter outer part of the shadow.
Eclipse Occurrence
- A Solar Eclipse does not occur every month because the Moon's orbit is tilted about 5o to the Earth's orbit, so the shadows usually miss.
- The Moon must be in the New Moon phase for a Solar Eclipse to occur.
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Description
Learn about the two types of eclipses, Solar and Lunar, and how they occur when the shadow of one body falls on another body.
