Cubangbang 8th Chapter 5 Stack #170735
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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| planets | greeks called wanderers
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| perihelion | when a planet is closest to the sun
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| aphelion | when a planet is farthest from the sun
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| astronomical unit/ ua | the earth's average distance from the sun
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| albedo | indicates a planets reflective ability
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| mass | a measure of the amount of matter the planet contains
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| inferior planets | the planets whose orbits are between the earths orbit and the sun
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| phases | the amount and shape of the planet's illuminated surface that is visible from the earth
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| transits | when a planet passes directly between the earth and the sun so that we see its dark silhouette against the sun's bright disk
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| superior planets | planets that are further from the sun than the earth's orbit,move slower than the earth
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| retrograde motion | when the earth passes a superior planet and the planet appears to move backwards compared to the backward stars
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| terrestrial planets | planets that are the earths size or smaller have have about the same density as the earth
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| jovian | also called Jupiterlike stars
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| gas giants | planets that are mostly gaseous
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| phobos and deimos | Mars' two moons named after the attendants of the Greek god of war
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| galilean moons | moons that Galileo discovered
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| great red spot | a feature on jupiter that is a reddish-colored, rotating, oval shaped area that astronomers have been trying to explain for centuries
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| ganymede | a galilean moon that is larger than Mercury and Pluto
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| Cassini's Division | a group of rings that surround Saturn that appears to be completely empty from earth
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| Uranus | discovered in 1781 by William Herschel
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| Urbain Jean Joseph Leverrier and John Couch Adams | two mathematicians that made independent calcuations about where a new planet would have to be to affect Uranus's orbit
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| Johann Gottfried Galle | found a new planet in 1846 less than 1˚ from the position that Leverrier had calculated
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| Percival Lowell | a wealthy american businessman and astronomer that built his own observatory in order to search for a unknown planet and calculated where another planet should be and got pictures of "planet X"
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| Clyde Tombaugh | found the exclusive "planet X"
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| Pluto | earlier called planet X
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| surface gravity | the downward pull the plane exerts on objects at its surface
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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.
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