Honors Earth Science Astronomy Vocabulary – Flashcards
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The change in the orientation of a rotating axis
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Precession
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The wobble that occurs around Earth's axis. Change half a degree every 18 years.
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Nutation
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The center that two objects orbit around
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Barycenter
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Change as the moon orbits the Earth based on the direction of sunlight
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Moon phases
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Caused by the location of the moon relative to Earth and the Sun
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Tides
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When a planet or moon turns all the way around or spins on its axis once
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Rotation
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Occurs every time a planet or moon successfully orbits something once
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Revolution
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One causes the others based on how much direct sunlight hits an area.
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Seasons/Tilt
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The sun emits different types of radiation
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Solar Radiation
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The Sun
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Earth's Energy Sources
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When a large nucleus splits into two smaller nuclei which creates energy
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Fission
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When nuclei come together to make energy
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Fusion
