Learning Path
Question & Answer
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Moon enters penumbra → Moon enters umbra → Moon exits umbra → Moon exits penumbra
Moon enters umbra → Moon enters penumbra → Moon exits penumbra → Moon exits umbra
Moon exits penumbra → Moon enters umbra → Moon enters penumbra → Moon exits umbra
Moon enters penumbra → Moon exits umbra → Moon enters umbra → Moon exits penumbra
Understanding the Answer
Let's break down why this is correct
The Moon first enters the penumbra, where it starts to look slightly darker. Other options are incorrect because This answer flips the order; It starts with exiting the penumbra, which cannot happen first.
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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