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| Large clouds of gas and dust floating around in space. |
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| The hottest region of the Sun |
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| Stars that outline a picture in the sky |
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| An area that contains no air |
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| Familiar shape with the constellation Ursa Major which contains the pointer stars. |
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| The force that resists motion |
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| Streams of gas erupting from the chromosphere and returning in looplike fashion |
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| Spiral arms attached to a straight "bar" that runs through a galaxy |
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| Name 3 basic types of galaxies by shape |
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| Spiral, Irregular, Elliptical |
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| The part of the Sun that is only visible during a Solar Eclipse |
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| Name given to the study of outer space and all that it contains |
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| Dark patches on the Sun's photosphere |
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| High speed stream of particles that travels outward from holes in the sun's corona and beats on the Earth's atmosphere |
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| Brightest star in the constellation Leo |
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| Brightest star in the night sky |
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| Brightest star in the constellation Perseus |
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| Star which is called the pole star |
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| A Symmetrical shaped oval |
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| Two central points of an ellipse |
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| Who formulated the 3 laws of planetary motion |
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| The distance between the Earth and the Sun(not 93 million miles) |
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| The English scientist who discovered gravity |
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| One of the planets with no moon |
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| The heavenly body that Copernicus believed was the center of the universe |
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| The heavenly body that Ptolemy thought was the center of the Universe |
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| Term that describes the ocean at its lowest point on the shore |
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| Which part of the Earth's atmosphere filters out harmful ultraviolet light |
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| Name given to the completion of the moon's revolution |
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| Length of time for the Earth to complete its revolution |
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| Amount of time it takes for a comet to complete an orbit |
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| Type of tide that occurs when the gravitational forces of the Sun and the Moon work against each other resulting in weak tides |
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| A group of asteroids found in the inner solar system, many of which cross paths wit hthe Earth |
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| Little "planets" ranging in size from a few hundred miles across to the size of a small house, most are found between Mars and Jupiter |
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| Pieces of space debris that are smaller than the smallest asteroids |
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