BJU - Space and Earth Science - Chapter 5
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| The fraction or percentage of the light shining on a planet or other nonluminous celestial object that it reflects. | albedo
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| The point in the orbit of a planet or other object orbiting the sun where it is farthest from the sun. | aphelion
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| A unit of astronomical distance equal to the average distance between Earth and the sun (150 million km or 93 million miles). | astronomical unit
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| The large central gap in Saturn's ring system when viewed from Earth. The Cassini-Huygens mission to Saturn demonstrated that the Cassini Division actually contains thousands of thin rings. | Cassini's Division
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| A special geometric figure that can best be described as a flattened circle. Given 2 points in a plane, an ellipse consists of all the other points in the plane such that the sum of their distances from the two given points is a constant. | ellipse
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| A point of geometric significance in the description of a system of points or physical phenomena. One of 2 points used to define an ellipse. | focus
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| Any of Jupiter's four largest moons that were named after their discoverer, Galileo Galilei. | Galilean moons
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| One of the large, gaseous planets: Jupiter, Saturn, Uranus, or Neptune. Also called a Jovian planet.gas | giant
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| A reddish colored, oval-shaped area within the atmosphere of Jupiter that is probably a centuries long storm system. | Great Red Spot
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| One of the planets whose orbit is closer to the sun than the Earth's orbit. | inferior planet
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| Resembling the planet Jupiter or pertaining to Jupiter or the Jupiter-like planets. | Jovian
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| A measure of the amount of matter an object contains; not dependent on the force of gravity. | mass
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| The eclipsing of a heavenly body such as a star or planet by the moon or another planet. | occult
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| The point nearest the sun in the orbit of a planet or other sun-orbiting object. | perihelion
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| The appearance of the moon according to the amount of the lighted side that is visible from Earth. | phase
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| Any large body orbiting any star. One of the nine largest bodies orbiting the sun. | planet
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| The apparent backward movement of the superior planets caused by the difference in orbital speed between Earth and the planet being observed. | retrograde motion
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| A planet whose orbit is farther from the sun than the Earth's orbit. | superior planet
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| The gravitational force measured at the actual or designated surface of a celestial object. | surface gravity
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| The passage of an inferior planet across the sun's disk. | transit
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| The force of gravity exerted on an object. | weight
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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.
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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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