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Space

TermDefinition
astronomer scientist who studies heavenly bodies
astronomy study of heavenly bodies
satellite natural or artificial object orbiting a body in space
universe everything that exist
phases the changing patteron of light and dark on the moon as viewed from earth
waning after the full moon as the visible part of the moon decrease
waxing after a new moon as the visible part of the moon increases
constellation a group of stars that form a pattern
north star polaris the star above the north pole
pole star polaris the star above the north star
equinox day on which the sun shines directly on the equator
galaxy large group of stars
spiral galaxy milky way; galaxy with a thick center and flattened arms
elliptical galaxy spherical or flattened disk shaped galaxy
irregular galaxy galaxy with no definite shape
Milky Way Galaxy a galaxy where the sun is; this is where we live
core in the core of the sun, nuclear reactions release immese amounts of energy temperatures can soar up to 15 million degrees Celsius
atmosphere the energy produce in the core moves outward through the layers of the sun
orbit curved path of one object around another objet in space
asteroids large chunks of rock that orbit the sun
meteoroid piece of rock or metal that orbits the sun
direct rays light rays that hit the earth straight on
indirect rays light rays that do not hit the Earth straight on
sunspot a dark region of cool matter on the surface of the sun. They don't stay there forever.
solar flare a huge explosion of gas and particles
solar wind particles that flow from the Sun into space
aurora coloured lights in the sky produced when a solar wind comes into contact with the Earth's atmosphere
Created by: dcom
Popular Earth Science sets

 

 



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