Astronomy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Astonomy | show 🗑
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| Geocentric | show 🗑
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| Heliocentric | show 🗑
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| Retrograde Motion | show 🗑
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| Ellipse | show 🗑
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| show | average distance from earth to sun
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| Rotation | show 🗑
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| show | the motion of one body about another
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| show | he slow, motion of the earth's axis of rotation, caused by the gravitational attraction of the sun and moon, and, to a smaller extent, of the planets
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| show | the point in the orbit of a planet or comet at which it is nearest to the sun.
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| show | the point in the orbit of a planet or a comet at which it is farthest from the sun.
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| show | the point in the orbit of a heavenly body, especially the moon, or of an artificial satellite at which it is nearest to the earth.
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| Apogee | show 🗑
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| Phases of the Moon | show 🗑
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| show | the obscuration of the light of the sun by the intervention of the moon between it and a point on the earth
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| show | the obscuration of the light of the moon by the intervention of the earth between it and the sun
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| Crater | show 🗑
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| Terrestrial Planet | show 🗑
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| show | any of the four large outer planets: Jupiter, Saturn, Uranus, and Neptune.
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| show | a cloud of interstellar gas and dust
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| show | one of the small celestial bodies that, were fused together to form the planets of the solar system.
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| Asteroid | show 🗑
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| show | a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and gas that may form a tail that streams away from the sun
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| Coma | show 🗑
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| show | any of the small bodies, often remnants of comets, traveling through space: when such a body enters the earth's atmosphere it is heated to luminosity and becomes a meteor.
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| show | a transient fiery streak in the sky produced by a meteoroid passing through the earth's atmosphere; a shooting star or bolide
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| show | a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid.
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| Electromagnetic Spectrum | show 🗑
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| show | he entire spectrum, considered as a continuum, of all kinds of electric, magnetic, and visible radiation, from gamma rays having a wavelength of 0.001 angstrom to long waves having a wavelength of more than 1 million km.
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| Spectroscopy | show 🗑
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| Doppler Effect | show 🗑
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| Refracting Telescope | show 🗑
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| Reflecting Telescope | show 🗑
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| show | a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
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| Hubble Telescope | show 🗑
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| show | any of several U.S. space vehicles consisting of a reusable manned orbiter that touches down on a landing strip after an orbital mission
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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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