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4 Cards in this Set
- Front
- Back
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lunar eclipse
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an eclipse in which the moon appears darkened as it passes into the earth's shadow
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solar eclipse
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an eclipse in which the sun is obscured by the moon
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umbra
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a fully shaded inner region of a shadow cast by an opaque object, especially the area in the earth or moon experiencing the total phase of an eclipse
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penumbra
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a partial shadow, as in an eclipse, between regions of complete illumination
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