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T6.1SolarSystemObj.

6.1 Solar System Objects

TermDefinition
Solar System system consisting of the sun, the planets and other objects that revolve around it
Astronomical unit unit of distance equal to the average distance between Earth and the sun, about 150 million km (93 million miles)
sun large, gaseous body at the center of the solar system
planet an object that orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit
moon a natural satellite that orbits a planet
asteroid one of the rocky objects revolving around the sun that is too small and numerous to be considered a planet
meteoroid a chunk of rock or dust in space that is generally smaller than an asteriod
comet a loose collection of ice and dust that orbits the sun in a long, narrow orbit
convection zone outermost layer of sun's interior where plasma rises and sinks in convection loops
radiative zone middle layer of sun's interior where gamma rays (electromagnetic radiation) pass through
core center of the sun where nuclear fusion occurs
photosphere inner layer of sun's atmosphere
chromosphere middle layer of sun's atmosphere that gives the sun its reddish color
corona outermost layer of sun's atmosphere that looks like a white halo around the sun during a total solar eclipse
sunspots dark areas on the sun's surface cooler than surrounding plasma
prominences huge loops of plasma connecting sun spots
solar flares eruptions of large amounts of magnetic energy from loops of plasma suddenly connect
Order of objects in our solar system Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
meteorite a chunk of rock from space smaller than an asteroid that passes through the Earth's atmosphere and strikes the Earth's surface
Created by: DanetteWeisman
Popular Earth Science sets

 

 



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