tejencky 2odd- maile
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| astronomy | the science that deals with the universe beyond the earths atmosphere
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| geocentric | having the earth as a center
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| heliocentric | measured as being seen from the center of the sun
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| retrograde motion | the motion of a planet to move in a direction opposite of the others in the system
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| ellipse | a plane curve that shows each point in its fixed point are equal.
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| astronomical unit | a unit of length equal to the distance of the earth from the sun
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| rotation | the movement of the earth turning on its axis
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| revolution | one complete rotation
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| precession | the slow motion of the earths axis of rotation
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| perihelion | the point in the orbit of a planet or a comet at which it is closest from the sun
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| aphelion | the point in the orbit of a planet or a comet at which it is farthest from the sun
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| perigree | the point in the orbit of the moon when its closest to earth
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| apogee | the point in the orbit of the moon when its farthest from earth
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| phases of the moon | how the moon is shaped after each night or term
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| solar eclipse | the light of the sun and moon shining on the earth between it and earth
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| lunar eclipse | the light of the sun and moon shining on the earth
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| crater | the cup shaped depression or dip on the surface of the earth
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| terrestrial planet | an inner planet
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| jovian planet | any of the four large outer planets: jupiter, saturn, uranus,and neptune
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| nebula | a cloud of interstellar gas and dust
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| planetsimal | one of the small celestial bodies that were fused together to make the planets of the solar system
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| asteroid | a minor planet
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| comet | a celestial body moving about the sun
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| coma | the nebulous envelope around the nucleus of a comet
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| meteoroid | small bodies, often remnants of comets, traveling through space
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| meteor | astronomy
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| meteorite | a mass of pieces of stone or metal that has reached the earth from outer space
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| electromagnetic spectrum | a continuum, of all kinds of electric, magnetic, and visible radiation, from gamma rays
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| photon | a quantum of electromagnetic radiation,
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| spectroscopy | the science that deals with the use of the spectroscope
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| doppler effect | the shift in frequency of acoustic or electromagnetic radiation emitted by a source moving
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| refracting telescope | has two lenses to enlarge objects
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| reflecting telescope | a telescope with a mirror to gather light from objects in earths orbit
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| radio telescope | system that has antenna, used to gather radio waves emitted by celestial sources
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| hubble telescope | a telescope launched into orbit around the earth in 1990 to provide information about the universe
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| space shuttle | a rocket launched spacecraft able to land making journeys between earth and its orbit
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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mailepaek
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