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Question & Answer
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The Moon turns red during a total lunar eclipse due to atmospheric scattering of light.
The penumbral shadow causes the Moon to completely disappear from view.
The Earth's umbra is responsible for the darkest part of the shadow, leading to a total eclipse.
The phases of a lunar eclipse can help determine the relative sizes of the Earth and Moon.
A lunar eclipse only occurs when the Moon is in its new phase.
Understanding the Answer
Let's break down why this is correct
When the Moon moves into Earth's umbra, it can look red because the Earth's atmosphere bends sunlight, a process called scattering. Other options are incorrect because The penumbral shadow only makes the Moon a bit dimmer, like a light gray shade; A lunar eclipse happens when the Sun, Earth, and Moon line up with Earth in the middle.
Key Concepts
Lunar Eclipse Phases
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Deep Dive: Lunar Eclipse Phases
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Definition
Lunar Eclipse Phases involve the Earth casting its umbral and penumbral shadows on the Moon. As the Moon enters the Earth's penumbra, it gradually darkens, sometimes turning red due to atmospheric scattering. This phenomenon allows observers to study the relative sizes of the Earth and Moon based on the shape of the Earth's shadow on the Moon, as demonstrated by ancient Greek astronomers.
Topic Definition
Lunar Eclipse Phases involve the Earth casting its umbral and penumbral shadows on the Moon. As the Moon enters the Earth's penumbra, it gradually darkens, sometimes turning red due to atmospheric scattering. This phenomenon allows observers to study the relative sizes of the Earth and Moon based on the shape of the Earth's shadow on the Moon, as demonstrated by ancient Greek astronomers.
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