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20 Cards in this Set
- Front
- Back
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Light Year
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the time it takes light to travel in one year. about 94.6 trillion km
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Parallax
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a
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Phases of a Star
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a
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Nebula
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a
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Main Sequence
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a
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Red Giant
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a
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White Dwarf
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a
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Black Hole
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a
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Irregular Galaxy
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a
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Protostar
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a
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Hubble Space Telescope
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a
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Star Color
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a
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Spectrum
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a
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Super Nova
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a
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Spectrograph
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a
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Apparent Magnitude
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a
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Continuous Spectrum
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a
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Absorption Spectrum
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a
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Neutron Star
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a
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Barred Galaxy
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a
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